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Next: Partially Closed Valve Up: The Moving Shocks Previous: Shock-Choke Phenomenon Index Partially Open ValveThe previous case is a special case of the moving shock. The general case is when one gas flows into another gas with a given velocity. The only limitation is that the ``downstream' gas velocity is higher than the ``upstream'' gas velocity as shown in Figure (5.17). The relationship between the different Mach numbers on the ``upstream'' side is The relationship between the different Mach on the ``downstream'' side is An additional parameter has be supplied to solve the problem. A common problem is to find the moving shock velocity when the velocity ``downstream'' or the pressure is suddenly increased. It has to be mentioned that the temperature ``downstream'' is unknown (the flow of the gas with the higher velocity). The procedure for the calculations can be done by the following algorithm:
Next: Partially Closed Valve Up: The Moving Shocks Previous: Shock-Choke Phenomenon Index Created by:Genick Bar-Meir, Ph.D. On: 2007-11-21 |