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i generate random numbers of x, how can i use this random x values for the rest of the code

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isilay aydin
isilay aydin 2020 年 5 月 19 日
閉鎖済み: Stephen23 2020 年 5 月 19 日
x = 0.05 + (0.1-0.05).*rand(10,1);
Perimeter = (pi*HydraulicDiameter);
NumberOfCoolantChannels = 3;
Npass = 1; ...Number of Passes
% Ac = (pi*(HydraulicDiameter^2)/(4)); ...Single channel flow cross section
Ac = 1.571e-5;
Atotal = NumberOfCoolantChannels*Ac; ... Total Flow Cross Section
BladeMassFlow = (CoolantBleed/100)*(TurbineMassFlow/NumberOfBlades);
ChannelMassFlow = (BladeMassFlow/NumberOfCoolantChannels);
RibHeighHydraulicDiameterRatio = x;
FrictionFactor2 = 1.447*(1.14-2*log10(x)).^-2; %transverse ribs
% OverallPressureDrop = FrictionFactor2*((Npass*BladeSpan*10^-3)/HydraulicDiameter)*CoolantDensity*((BulkVelocity^2)/2);
OverallPressureDrop = 8300;
BulkVelocity =((OverallPressureDrop/FrictionFactor2)*(HydraulicDiameter/(Npass*BladeSpan*10^-3))*(2/CoolantDensity))^0.5;
ChannelCoolantMassFlow = (CoolantDensity*Ac*BulkVelocity);
BladeCoolantMassFlow = NumberOfCoolantChannels*ChannelCoolantMassFlow;
PercentageCoolantBleed = 100*(BladeCoolantMassFlow*NumberOfBlades/TurbineMassFlow);
Re = (ChannelCoolantMassFlow/Ac)*(HydraulicDiameter/CoolantViscosity);
Nu = 0.15*Re^0.7; ...based on the Hydraulic Diameter
InternalHeatTransferCoefficient = Nu*(CoolantConductivity/HydraulicDiameter);
TechnologyFactor = (InternalHeatTransferCoefficient*Npass*Perimeter*NumberOfCoolantChannels)/(ExternalHeatTransferCoefficient*BladeExternalPerimeter*45*10^-3);
MassFlowFunction = (BladeCoolantMassFlow*CoolantSpecificHeat)/(BladeExternalPerimeter*BladeChord*10^-3*ExternalHeatTransferCoefficient*BladeSpan*10^-3);
ConvectionCoolingEfficiency = 1 - exp(-(TechnologyFactor)/(MassFlowFunction));
OverallEffectinevess = (MassFlowFunction*ConvectionCoolingEfficiency)/(1 + MassFlowFunction*ConvectionCoolingEfficiency);
MetalTemperature = (ExternalGasTemperature) - OverallEffectinevess*(ExternalGasTemperature-CoolantInletTemperature);
% FrictionFactor = 0.316*Re^-0.25; ...for smooth round pipe
% BulkVelocity = (ChannelMassFlow) / (CoolantDensity*Ac);
TemperatureSmooth = 1080.9;
TemperatureRipped = MetalTemperature;
RipEfficiency = ((TemperatureRipped-TemperatureSmooth)/TemperatureRipped)*100;
I am a new learner so could use show it or explain it very simply? the result i want to see is that rip efficiency and metal temperature.
  5 件のコメント
dpb
dpb 2020 年 5 月 19 日
But there's no x in the equations...what variable(s) are you wanting randomized? You have to write the solutions in terms of the variables with some additional random component to see anything happen.
isilay aydin
isilay aydin 2020 年 5 月 19 日
there is a x in the fraction factor.i want to see the all changes of other variables which also get affected by fraction factor and x

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