Path: Propulsion/Rocket
% Computes the constant mass that will produce the same delta-V. Given a change in velocity and exhaust velocity this routine will compute the equivalent constant mass that will produce the same delta-v as a time-varying mass. Type MassEquivalentDV for a demo. It shows that the total delta-v is the same. As expected, the time varying delta-v changes more slowly at first and faster at the end. Units may be of any type as long as they are consistent. Examples are given. Since version 2014.1 -------------------------------------------------------------------------- Form: [mEq, tBurn, mF] = MassEquivalentDV( dV, uE, mI, thrust ) -------------------------------------------------------------------------- ------ Inputs ------ dV (1,1) Desired change in velocity (km/s) uE (1,1) Exhaust velocity (km/s) mI (1,1) Initial mass (kg) thrust (1,1) Thrust (kN) ------- Outputs ------- mEq (1,1) Equivalent constant mass tBurn (1,1) Burn duration mF (1,1) Mass of fuel --------------------------------------------------------------------------
Common: CommonData/SwooshWatermark Common: General/CellToMat Common: General/MatToCell Common: General/Watermark Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/PltStyle Common: Graphics/TimeLabl
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