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JSBSim Engines: Difference between revisions
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* Intake & Throttle | * Intake & Throttle | ||
** The intake is modeled by <ram-air-factor>,<minmp>, <maxmp>, and <air-intake-impedance-factor>. | ** The intake is modeled by <ram-air-factor>,<minmp>, <maxmp>, and <air-intake-impedance-factor>. | ||
** <ram-air-factor> is the efficiency of the air scoop intake. 0 turns ram air off. Default is 1. This value is exposed on the property tree so it may be altered at runtime to simulate alternate air, etc. | ** <ram-air-factor> is the efficiency of the air scoop intake. 0 turns ram air off. Default is 1. This value is exposed on the property tree so it may be altered at runtime to simulate alternate air, etc. The value can be calculated by (ambient pressure)/(desired pressure)-1 where desired pressure is full throttle at rated RPM. | ||
** <maxmp> is the maximum manifold pressure achievable. It is used for determining <BSFC> and <air-intake-impedance-factor> if a values are not supplied for those items. | ** <maxmp> is the maximum manifold pressure achievable. It is used for determining <BSFC> and <air-intake-impedance-factor> if a values are not supplied for those items. | ||
** <minmp> is used along with <idlerpm> to determine the slope of the throttle response | ** <minmp> is used along with <idlerpm> to determine the slope of the throttle response | ||