Path: StraightLine/ConstantAccel
% Compute the transit time and exhaust velocity for constant acceleration This is for constant power, constant acceleration, linear change in exhaust velocity. Pass empty for muF to compute the optimal value which minimizes transfer time. If tank fraction is not entered it is assumed zero. Using a higher fuel fraction than optimal results in a longer transit time with lower specific impulse and power requirements. -------------------------------------------------------------------------- Form: TOFConstAccel; % demo [tF,uEMin,uEMax,muE,muF] = TOFConstAccel(lambda,dF,sigma,muF,f) [tF,uEMin,uEMax,muE,muF] = TOFConstAccel(lambda,dF,sigma) % optimal -------------------------------------------------------------------------- ------ Inputs ------ lambda (1,:) Payload fraction (mP/m0) dF (1,:) Distance (km) sigma (1,:) Jet specific power, W/kg muF (1,:) Fuel mass fraction (mF/m0), [] to compute f (1,1) Fuel tank fraction, default 0 ------- Outputs ------- tF (1,:) Minimum transfer time (s) uEMin (1,:) Minimum exhaust velocity (km/s) uEMax (1,:) Maximum exhaust velocity (km/s) muE (1,:) Engine mass fraction (mE/m0) muF (1,:) Optimal fuel mass fraction (mF/m0) --------------------------------------------------------------------------
Common: Database/Constant Common: Graphics/TimeLabel
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