Aerodynamics Tool Free

Mobile Education by Nil

- September 23, 2014

1

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(74)

# Description

1. Basic Aerodynamic Calculator- Calculation of Dynamic Pressure, Reynolds Number, Force and Moment Coefficient for Incompressible and Compressible flow.

2. Isentropic Relations - If any one of the variables, M, Po/P, To/T, Rho/Rh or A/A* is known the remaining variable values can be computed.

3. Normal Shock- Select any known variable from list, M1, P2/P1, T2/T1, M2, rho2/rho1, Po2/Po1, and Po2/P1 and user can calculate remaining variable values. Indices 1 and 2 are for before shock and after shock respectively.

4. Oblique Shock - Theta-Beta-Mech number relation. If values of any two variable known then user can calculate value of remaining one.

5. Vortex Lattice Method - Vortex Lattice Method is a method used to calculate lift coefficient of Finite Wing at low speed. It gives fairly good CL estimation for Swept wing compared to Vortex Panel Method. This tool is helpful for primary aerodynamic design iterations. The method presented here uses 'n' spanwise divisions and one chordwise division of wing. The final output is slope of CL vs Alpha curve and it is CL per degree angle of attack.

6. Prandtl-Meyer expansion wave relations - Compute v1 from M1 (Mach Number before expansion wave). v is Prandtl-Meyer function. Add deflection angle theta to v1 to get v2. From v2 compute M2 (Mach Number after expansion wave).

7. Pitot Tube - Divided in two categories. One for Incompressible Flow and Other for Compressible Flow. In case of Incompressible flow, user can input height of Pitot Tube column in Meters of Water, Mercury or Any known fluid to calculate free stream velocity. The compressible flow case takes inputs for Total Pressure and Static Pressure measured by Pitot Tube and calculates Free Stream Mach Number. User need not to worry about Subsonic or Supersonic flows. These are identified and solved accordingly.

8. Y Plus or Y+ - It calculates first cell height of grid near wall to resolve boundary layer.

9. Check points for Inputs to avoid wrong inputs and flash suggestions if any.

If you like this, please consider buying ad-free version which can take any value of Specific Heat Ratio (Gamma) and not fixed to 1.4.

If found any Bug or wrong output, please mail me regarding issue

Before giving negative rating for pop-up ads please consider that I have tried to keep ads when user finishes using any one of the utility of this app and not at the launch of utility which is more objectionable.

...Thanks in advance

Also released an app for solving compressible nozzle flow problem. Please go through it.

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# Reviews

Helpfulness

Newest

Rating

Helpfulness

All Versions

All Versions

Latest Version

4.0

74 total

5 39

4 14

3 11

2 3

1 7

Jay Flitton

I'm happy with it. After giving this app a second chance, I can see that it has had a lot of work put into it. The app does very well at computing things like coefficient of lift, drag, etc. This is a good solid program, give it a chance, get used to it, and like me, you'll be happy with it too.

User reviews

Mobile Education by Nil December 26, 2014

Can you please tell me at what input values it gives NAN, so that I try to rectify the problem? Mobile Education by Nil May 11, 2014

Initially this app was posted with Banner ads only. But it resulted in nearly zero revenue and I need to shift to current Ad formats. It took approx 100 Hrs to learn Android and 100 Hrs to Aerodynamics Tool development. Ads only can pay to developers efforts in case of Free App. Otherwise paid version is also there which is ad free. Mobile Education by Nil February 20, 2014

Thanks Awesome Although the interfaces are different, they are very simple and handy. The app is very light and gives swift answers. It is really a handy app for all aerodynamists.

Mobile Education by Nil February 2, 2014

Thanks Review deleted

# What's New

Fixed problem with display of Oblique Shock Menu

# Additional information

Updated

September 23, 2014

Size

2.4M

Installs

5,000 - 10,000

Current Version

2.02

Requires Android

2.3 and up

Content Rating

Everyone

Permissions

Report

Flag as inappropriate Offered By

Mobile Education by Nil

Developer

Visit Website Email nilyash81@gmail.com

72/8, Armament Colony, Ganeshkhind, Pune, Maharashtra, India, Pin- 411007

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KOVE

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AeroKev is a very convenient app that assists aerospace engineers and students in performing rudimentary airfoil aerodynamics and flight performance estimation.

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

▪▪▪ CURRENT VERSION: 1.0 (2012) ▪▪▪

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

INSTRUCTIONS:

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▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

KNOWN ISSUES:

○ Latency while loading page for the first time

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

REPORT BUGS:

○ You drop an email at koveapps@gmail.com

## aFoil

opo

1

A 4 digit NACA airfoil plotter. This app plots these airfoils and let the user watch the effect each parameter has on the shape of the airfoil. The airfoil rotates following user screen drags. A little nice tool for learning the basics of NACA airfoils shapes. This app may be usefull for airplane modeling, RC enthusiasts, wind turbine, boat, rudder designers, teachers, aerodynamics and hydrodynamics students.

## Aerodynamics Tool

The app is handy tool for Aerodynamic Engineer and Academics. It contains Isentropic Relations, Normal Shock Relations, Oblique-Shock (Theta-Beta-Mach) Relations, Prandtl-Meyer Expansion wave Relations, Pitot Tube Velocity computations, Y Plus or Y+ calculations.

1. Basic Aerodynamic Calculator- Calculation of Dynamic Pressure, Reynolds Number, Force and Moment Coefficient for Incompressible and Compressible flow.

2. Isentropic Relations - If any one of the variables, M, Po/P, To/T, Rho/Rh or A/A* is known the remaining variable values can be computed for any specific heat ratio (Gamma).

3. Normal Shock- Select any known variable from list, M1, P2/P1, T2/T1, M2, rho2/rho1, Po2/Po1, and Po2/P1 and user can calculate remaining variable values for any specific heat ratio (Gamma).. Indices 1 and 2 are for before shock and after shock respectively.

4. Oblique Shock - Theta-Beta-Mech number relation. If values of any two variable known then user can calculate value of remaining one for any specific heat ratio (Gamma)..

5. Vortex Lattice Method - Vortex Lattice Method is a method used to calculate lift coefficient of Finite Wing at low speed. It gives fairly good CL estimation for Swept wing compared to Vortex Panel Method. This tool is helpful for primary aerodynamic design iterations. The method presented here uses 'n' spanwise divisions and one chordwise division of wing. The final output is slope of CL vs Alpha curve and it is CL per degree angle of attack.

6. Prandtl-Meyer expansion wave relations - Compute v1 from M1 (Mach Number before expansion wave). v is Prandtl-Meyer function. Add deflection angle theta to v1 to get v2. From v2 compute M2 (Mach Number after expansion wave) and all this for any specific heat ratio (Gamma).

7. Pitot Tube - Divided in two categories. One for Incompressible Flow and Other for Compressible Flow. In case of Incompressible flow, user can input height of Pitot Tube column in Meters of Water, Mercury or Any known fluid to calculate free stream velocity. The compressible flow case takes inputs for Total Pressure and Static Pressure measured by Pitot Tube and calculates Free Stream Mach Number. User need not to worry about Subsonic or Supersonic flows. These are identified and solved accordingly.

8. Y Plus or Y+ - It calculates first cell height of grid near wall to resolve boundary layer.

9. Check points for Inputs to avoid wrong inputs and flash suggestions if any.

If found any Bug or wrong output, please mail me regarding issue...Thanks in advance

## Compressible Nozzle

1. Solves 1-D Compressible flow in Convergent Divergent Nozzle

2. Get mode of operation- Check whether existing nozzle is Subsonic Nozzle, Normal Shock exist in Nozzle, Under-expanded or Over-expanded Nozzle, under specified operating conditions. Compute Thrust, Exit Velocity, Exit Temperature and Mass Flow rate.

3. Optimization of Nozzle - Design Nozzle for given Area ration or Pressure ratio. Find optimum expansion conditions for given Area ratio or Pressure ratio. Compute Optimized Nozzle performance like Thrust, Exit Velocity, Exit Temperature and Mass Flow rate.

4. Plot graphs of variations of Mach No, Pressure and Temperature in Nozzle.

5. A tool for Students and Professionals in Rocket Propulsion design, also Aerospace and Aerodynamics geeks.

Before giving negative rating, Please mail me bugs or crashes, will try to fix as early as possible.

## Night Sky Tools - Astronomy

Night Sky Tools is the ultimate collection of astronomical tools perfect for anyone interested in astronomy.

The calculations are of a high enough accuracy for almost all amateur astronomy applications.

Due to the fact that astronomy is often best when far from civilization where mobile signal may not always be reliable. Therefore, this app is (almost) completely self-contained and does not require any internet connection for most of the information available. The only exceptions to this are the SOHO solar images and NGC/IC, Messier, Caldwell and Binary star images and weather forecast which are loaded dynamically, as well as the refreshing of satellite, comet and near-earth asteroid data.

Night mode turns the display red for night observations without having to ruin your night vision.

The Sky Map makes use of the direction sensors of the device to show the sky above (or below you). Most of the features can be toggled in the settings. The Sky Map also allows you to turn on the device's camera to see the view behind the device with the sky map superimposed over it.

The direction sensors of the device may need to be calibrated if the map appears to be pointing in the wrong direction. To calibrate the device's sensors wave the device in a figure-8 pattern. If the direction is still off, then the direction calibration can be adjusted manually by changing the setting in the Settings screen.

The observation log, allows you to save observations in the applications, as well as manage a list of astronomical equipment and observing locations. This equipment is also available for use in the Telescope Calculator.

Most of the data screens have an option to share the data via email, or other similar apps able to accept HTML content.

The Astronomical Time is also available as a Home screen widget. To use the widget, the app needs to be installed onto the internal storage instead of the SD card, otherwise it will not be available.

The Russian translation of the application is courtesy of Lirvux.

Some permissions are required for correct functioning of the app:

Location - used to determine user location throughout the app

Camera/Microphone - used to allow camera background in skymap. The microphone is never used but this permission is bundled with camera.

Photos/Media/Files - used to allow proper functioning of the full screen images and caching of images

Network access - used to do online searches, and downloading comet, asteroid and satellite data, object images and geocoding.

The app is jam-packed with features:

- Observe the sky with the skymap, planisphere, aurora forecast, polar finder, weather forecast, daylight map, SOHO images, Jupiter and Saturn's moons, Moon and Sun calendars and what's up.

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- Calculate angular separation, atmospheric refraction, magnitude, coordinate conversions, visual limiting magnitude, precession, redshift, and telescope airy disc, f-ratio and magnification

- Astronomical references, glossary, HR diagram and stellar classification.

- Astrophotography tools for exposure time, CCD resolution, Untracked exposure time and optimal f-ratio.

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- Observation log

- Astronomical time

## Compressible Nozzle Free

1. Compressible flow in Convergent Divergent Nozzle

2. Get mode of operation under specified operating conditions- Whether nozzle is Subsonic Nozzle, Normal Shock exist in Nozzle, location of Shock, Under-expanded or Over-expanded Nozzle. Compute Thrust, Exit Velocity, Exit Temperature and Mass Flow rate.

3. Optimization of Nozzle - Optimize Nozzle keeping fixed Area ration or Pressure ratio. Find optimum expansion conditions for given Area ratio or Pressure ratio. Compute Optimized Nozzle performance like Thrust, Exit Velocity, Exit Temperature and Mass Flow rate.

4. Paid version contains- Plotting Graph of Flow Variables like Mach No, Pressure, Temperature through nozzle.

5. A tool for Students and Professionals in Rocket Propulsion design and Aerospace Engineering. Check first hand nozzle performance using this tool before going for complex CFD simulations.

Before giving negative rating, Please mail me bugs or crashes, will try to fix as early as possible.

Consider buying ad free version if you like this

Thanks

## Compressible Flow Tool

Zdetier

1

Compressible Flow Solver is designed for professionals and students alike!

Leave your Textbooks and Tables at home! Compressible Flow Solver includes several tables, and calculators.

Leave your Textbooks and Tables at home! Compressible Flow Solver includes several tables, and calculators.

FEATURES:

***Standard Atmospheric Conditions for Air for a range of altitudes

***Gas Properties for

--Acetylene,Air,Ammonia,Argon,Butane,

Carbon dioxide,Carbon monoxide,Ethane,

Ethylene,Helium,Hydrogen,Methane,

Nitrogen,Oxygen,Propane,Water Vapor

*** Isentropic Flow Properties

--For any Specific Heat Ratio, and Mach values.

*** Normal Shock Properties

--For any Specific Heat Ratio, and Mach values.

***Oblique Shock Properties

--For any Specific Heat Ratio,deflection angle, and

Mach values.

COMING SOON:

*** Unit Converter for hassle free conversions

*** Expansion Fans

As always if you enjoy this application please rate and leave a review, also keep posted to updates as I will be pumping a lot of engineering related apps in the coming weeks!

CUSTOMER SUPPORT:

If you have any questions or problems with the application please send me an email at etier@ostatemail.okstate.edu, and I will assist as soon as I can.

# More from developer

## Compressible Nozzle Free

1. Compressible flow in Convergent Divergent Nozzle

2. Get mode of operation under specified operating conditions- Whether nozzle is Subsonic Nozzle, Normal Shock exist in Nozzle, location of Shock, Under-expanded or Over-expanded Nozzle. Compute Thrust, Exit Velocity, Exit Temperature and Mass Flow rate.

3. Optimization of Nozzle - Optimize Nozzle keeping fixed Area ration or Pressure ratio. Find optimum expansion conditions for given Area ratio or Pressure ratio. Compute Optimized Nozzle performance like Thrust, Exit Velocity, Exit Temperature and Mass Flow rate.

4. Paid version contains- Plotting Graph of Flow Variables like Mach No, Pressure, Temperature through nozzle.

5. A tool for Students and Professionals in Rocket Propulsion design and Aerospace Engineering. Check first hand nozzle performance using this tool before going for complex CFD simulations.

Before giving negative rating, Please mail me bugs or crashes, will try to fix as early as possible.

Consider buying ad free version if you like this

Thanks

## Compressible Nozzle

1. Solves 1-D Compressible flow in Convergent Divergent Nozzle

2. Get mode of operation- Check whether existing nozzle is Subsonic Nozzle, Normal Shock exist in Nozzle, Under-expanded or Over-expanded Nozzle, under specified operating conditions. Compute Thrust, Exit Velocity, Exit Temperature and Mass Flow rate.

3. Optimization of Nozzle - Design Nozzle for given Area ration or Pressure ratio. Find optimum expansion conditions for given Area ratio or Pressure ratio. Compute Optimized Nozzle performance like Thrust, Exit Velocity, Exit Temperature and Mass Flow rate.

4. Plot graphs of variations of Mach No, Pressure and Temperature in Nozzle.

5. A tool for Students and Professionals in Rocket Propulsion design, also Aerospace and Aerodynamics geeks.

Before giving negative rating, Please mail me bugs or crashes, will try to fix as early as possible.

## Normal Shock Free

Normal Shock Relations can be obtained using this app. The flow variable values across Normal Shock wave are generally tabulated in Text Books. In place of Tables one can use this handy app.

Select any known variable from list, M1, P2/P1, T2/T1, M2, rho2/rho1, Po2/Po1, and Po2/P1, input its value and user can calculate remaining variable values. The Indices 1 and 2 are for before shock and after shock respectively.

## Aerodynamics Tool

The app is handy tool for Aerodynamic Engineer and Academics. It contains Isentropic Relations, Normal Shock Relations, Oblique-Shock (Theta-Beta-Mach) Relations, Prandtl-Meyer Expansion wave Relations, Pitot Tube Velocity computations, Y Plus or Y+ calculations.

1. Basic Aerodynamic Calculator- Calculation of Dynamic Pressure, Reynolds Number, Force and Moment Coefficient for Incompressible and Compressible flow.

2. Isentropic Relations - If any one of the variables, M, Po/P, To/T, Rho/Rh or A/A* is known the remaining variable values can be computed for any specific heat ratio (Gamma).

3. Normal Shock- Select any known variable from list, M1, P2/P1, T2/T1, M2, rho2/rho1, Po2/Po1, and Po2/P1 and user can calculate remaining variable values for any specific heat ratio (Gamma).. Indices 1 and 2 are for before shock and after shock respectively.

4. Oblique Shock - Theta-Beta-Mech number relation. If values of any two variable known then user can calculate value of remaining one for any specific heat ratio (Gamma)..

5. Vortex Lattice Method - Vortex Lattice Method is a method used to calculate lift coefficient of Finite Wing at low speed. It gives fairly good CL estimation for Swept wing compared to Vortex Panel Method. This tool is helpful for primary aerodynamic design iterations. The method presented here uses 'n' spanwise divisions and one chordwise division of wing. The final output is slope of CL vs Alpha curve and it is CL per degree angle of attack.

6. Prandtl-Meyer expansion wave relations - Compute v1 from M1 (Mach Number before expansion wave). v is Prandtl-Meyer function. Add deflection angle theta to v1 to get v2. From v2 compute M2 (Mach Number after expansion wave) and all this for any specific heat ratio (Gamma).

7. Pitot Tube - Divided in two categories. One for Incompressible Flow and Other for Compressible Flow. In case of Incompressible flow, user can input height of Pitot Tube column in Meters of Water, Mercury or Any known fluid to calculate free stream velocity. The compressible flow case takes inputs for Total Pressure and Static Pressure measured by Pitot Tube and calculates Free Stream Mach Number. User need not to worry about Subsonic or Supersonic flows. These are identified and solved accordingly.

8. Y Plus or Y+ - It calculates first cell height of grid near wall to resolve boundary layer.

9. Check points for Inputs to avoid wrong inputs and flash suggestions if any.

If found any Bug or wrong output, please mail me regarding issue...Thanks in advance