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In a nozzle or other constriction, the discharge coefficient (also known as coefficient of discharge or efflux coefficient) is the ratio of the actual discharge to the ideal discharge, [1] i.e., the ratio of the mass flow rate at the discharge end of the nozzle to that of an ideal nozzle which expands an identical working fluid from the same initial conditions to the same exit pressures.
After M e = 1 is reached at the nozzle exit for p r = 0.5283p 0, the condition of choked flow occurs and the velocity throughout the nozzle cannot change with further decreases in p r. This is due to the fact that pressure changes downstream of the exit cannot travel upstream to cause changes in the flow conditions.
In the United States Armed Forces, separation means that a person is leaving active duty but not necessarily the service entirely. Separation typically occurs when someone reaches the date of their Expiration of Term of Service and are released from active duty, but still must complete their military reserve obligations.
For homogeneous fluids, the physical point at which the choking occurs for adiabatic conditions is when the exit plane velocity is at sonic conditions; i.e., at a Mach number of 1. [1] [2] [3] At choked flow, the mass flow rate can be increased only by increasing the upstream density of the substance.
The discharge theory can be tested by measuring the emptying time or time series of the water level () within the cylindrical vessel. In many cases, such experiments do not confirm the presented discharge theory: when comparing the theoretical predictions of the discharge process with measurements, very large differences can be found in such cases.
Unconditional discharge is, in effect, a non-punishment — a way that New York courts can acknowledge someone's conviction as valid while simultaneously releasing them "without imprisonment, fine ...
The optimal size of a rocket engine nozzle is achieved when the exit pressure equals ambient (atmospheric) pressure, which decreases with increasing altitude. The reason for this is as follows: using a quasi-one-dimensional approximation of the flow, if ambient pressure is higher than the exit pressure, it decreases the net thrust produced by ...
“An ‘Irish exit’ is another name for slipping out the back (or front) door seemingly unnoticed by the host,” national etiquette expert Diane Gottsman tells TODAY.com.