Technikal terminal velocity download free

Finally you must specify the atmospheric density. We have included models of the atmospheric density variation with altitude in the calculator. When you have the proper test conditions, press the red "Compute" button to calculate the terminal velocity. You can download your own copy of this calculator for use off line. The program is provided as TermVel. You must save this file on your hard drive and "Extract" the necessary files from TermVel. Click on "Termvcalc.

Notice In this calculator, you have to specify the drag coefficient. The value of the drag coefficient depends on the shape. For airflow near and faster than the speed of sound , there is a large increase in the drag coefficient because of the formation of shock waves on the object.

So be very careful when interpreting results with large terminal velocities. If your drag coefficient includes compressibility effects, then your answer is correct. If your drag coefficient was determined at low speeds, and the terminal velocity is very high, you are getting the wrong answer because your drag coefficient does not include compressibility effects. The terminal velocity equation tells us that an object with a small cross-sectional area, or a low drag coefficient, or a heavy weight will fall faster than an object with a large area, or high drag coefficient, or a light weight.

A rocket with a small parachute will fall faster than with a large parachute because of these effects. Since a rocket will drift with the wind, you can make your rocket return closer to the pad on a windy day by using a smaller parachute. If we have two objects with the same area and drag coefficient, like two identically sized spheres, the heavier object falls faster.

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You must save this file on your hard drive and "Extract" the necessary files from TermVel. Click on "Termvcalc. When you have gained some experience with the terminal velocity calculator and are familiar with the variables and operation, you can run a simple version of the program on-line.

The simple version contains just the calculator and no instructions and it loads faster than the version given above. Notice In this calculator, you have to specify the drag coefficient. The value of the drag coefficient depends on the shape. For airflow near and faster than the speed of sound , there is a large increase in the drag coefficient because of the formation of shock waves on the object.

So be very careful when interpreting results with large terminal velocities. If your drag coefficient includes compressibility effects, then your answer is correct. If your drag coefficient was determined at low speeds, and the terminal velocity is very high, you are getting the wrong answer because your drag coefficient does not include compressibility effects.

The terminal velocity equation tells us that an object with a large cross-sectional area or a high drag coefficient falls slower than an object with a small area or low drag coefficient.

A large flat plate falls slower than a small ball with the same weight. If we have two objects with the same area and drag coefficient, like two identically sized spheres, the lighter object falls slower. This seems to contradict the findings of Galileo that all free falling objects fall at the same rate with equal air resistance.

But Galileo's principle only applies in a vacuum, where there is NO air resistance and drag is equal to zero. We have also developed a simple simulation of a falling object to help you study this interesting physics problem.