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Android Apps > Maps & Navigation > Tunnel critical velocity
Tunnel critical velocity icon

Tunnel critical velocity

by .TT pocketEngineer SD · Maps & Navigation · $3.99
On Google Play since May 2013 · Data updated 2026-11-01

Tunnel critical velocity is made and published by .TT pocketEngineer SD. AppBrain is an independent app data site and isn't affiliated with .TT pocketEngineer SD. The app name, icon, screenshots and description belong to .TT pocketEngineer SD and are shown as published on Google Play.

AppBrain's verdict

EstablishedNiche
Installs
74
Last updated
December 27, 2023
Ads
No ads
Size
4.49 MB

Tunnel critical velocity is a niche app, with 74 installs. It doesn't have enough ratings yet to judge what users think.

Official page on Google Play

User feedback

Ratings and reviews on Google Play

Comments on Tunnel critical velocity for Android

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Store listing

By .TT pocketEngineer SD, from Google Play

“Critical velocity calculation for tunnel application.”

Tunnel critical velocity Screenshot 1 of 5
Tunnel critical velocity Screenshot 2 of 5
Tunnel critical velocity Screenshot 3 of 5
Tunnel critical velocity Screenshot 4 of 5
Tunnel critical velocity Screenshot 5 of 5
Screenshots by .TT pocketEngineer SD, from the Google Play listing
Description by .TT pocketEngineer SD Written by the developer, not by AppBrain. Click to read.
a Tunnel Critical Velocity calculation program employs the most commonly used model developed by Kennedy et al. to determine the ciritcal air velocity in tunnel ventilation for smoke control.

To calculate critical velocity in tunnel, a CriticalVel program solves a coupled set of equations by iteration.

Highlights:
-calculates critical air velocities in tunnel ventilation for smoke control as per NFPA 502.
-built-in customized area calculator. Options available are Partial circle, Segment circle, Half circle + rectangle, Half ellipse + rectangle, and Rectangle.
-built-in air density & air specific heat calculator.
-in SI-IP Units.

for details, see https://sites.google.com/view/pocketengineer/android-os/acriticalvel-and

Recent changes:
updates to Android API 34
removed save function
Official page on Google Play

Safety and technology

Found in the app by AppBrain
Ads
No ads
Price
$3.99
Libraries
?
App size
4.49 MB
Content rating
Everyone

Technologies used by Tunnel critical velocity

1 permissions
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
6.0
Launched
May 2013
  • Apr 5, 2026Installs50+ installs
  • Dec 27, 2023UpdateVersion 6.0
  • Feb 1, 2021UpdateVersion 4.0
  • Oct 12, 2020Price DropNew price: $3.99 ($5.46)
  • Aug 11, 2020Price IncreaseNew price: $5.46 ($3.99)
Show all changes Show fewer

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Installs

Tracked by AppBrain
Last 30 days
0
Play install range
50+
Launched
May 2013

Installs over time

Tunnel critical velocity has been installed 74 times. Over the past 30 days, it has been installed 0 times.

Rankings

Google Play top charts

Google Play Rankings for Tunnel critical velocity

This app is not ranked

About the app and developer

About Tunnel critical velocity

Tunnel critical velocity is a maps & navigation app developed by .TT pocketEngineer SD.

How many times has Tunnel critical velocity been installed?

Tunnel critical velocity has been installed 74 times. In the last 30 days, the app was installed 0 times.

What is the rating of Tunnel critical velocity?

Tunnel critical velocity has no ratings yet.

Is Tunnel critical velocity free?

Tunnel critical velocity costs $3.99. The app size is 4.49 MB. The latest version available is 6.0. The last update was on December 27, 2023.

What are the requirements for Tunnel critical velocity?

The app has a content rating of Everyone. The app has been available on Google Play since May 2013.

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Developer information for .TT pocketEngineer SD

.TT pocketEngineer SD

pocketengineer@hotmail.com

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