📄 variabledefination.m
字号:
subroutine propeller(altitude, Radius,Jar,CP,CT)
% ***** Program NDProp *****
%
% Adaptation of the program
% 'Propeller 1.2.3' by Barry Young
%
% *** Variable Usage ***
%
% A,Acousvel = speed of sound (音速,计算马赫数影响时用)
% ACL = Cl correction constant (升力系数修正因子)
% Azero = lift curve slope (升力线斜率)
% AF = Airfoil designator (integer) (翼型 ?)
% afname = airfoil designation (翼型 ?)
% AFds(i)= array of airfoil names (所选翼型序号)
% Ads = temporary register (暂存)
% AIRFOILNAME = name of airfoil used on the prop (所选翼型名号)
% Alpha(i,j) = angle of attack at Xi & Jj (进距比Jj时Xi处的攻角--rad)
% ALPHADEG(I,J) = angle of attack in degrees (进距比Jj时Xi处的攻角--degrees)
% ANS = input integer 'decision' varibles
% BCD = Cd correction constant (阻力系数修正因子)
% Beta(i) = blade angle at X(i) (DEG) (桨叶角--degrees)
% C(i) = chord at X(i) (INCHES) (弦长)
% CF = sine of angle phi (sin(φ))
% CL = lift coefficient (升力系数)
% CP(j) = Cp at J(j) (J(j)时功率系数)
% CT(j) = Ct at J(j) (J(j)时推力系数)
% COLS = number of columns in a matrix (矩阵列数)
% C0 = constant pi^3/8 (常数因子)
% C1, C2 = constants (常数)
% DQ(i,j) = d(CQ)/dX at X(i) and J(j) (进距比Jj时Xi处的d(CQ)/dX)
% DR = conversion, degrees to radians (度-- 变化-- 弧度)
% DT(i,j) = d(CT)/dX at X(i) and J(j) (进距比Jj时Xi处的d(CT)/dX)
% D1,D2 = temporary variables (暂时变量)
% ETA(j) = efficiency at j (进距比J时桨的效率)
% Fzero = thickness routine flag (厚度……标志)
% F1 = jmin flag (jmin标志)
% F2 = jmax flag (jmax标志)
% F3 = general flag ?
% F4 = change routine flag ?
% F5 = convergence flag (收敛?标志)
% F6 = airfoil selection input flag (翼型输入标志)
% FX = input to subroutine (子程序输入变量)
% FY = output from subroutine (子程序输出变量)
% F(i,j) = matrix of spline fit coefficients (拟合系数)
% GP(i) = geometric pitch at X(i) (X(i)处的几何螺距)
% H = altitude in thousands of feet (飞行高度--thousands of feet)
% I = counter or dummy variable (记数变量)
% II= row number in matrix (行号)
% ikey= logical unit identifier for keyboard (键盘设备号)
% imon= logical unit identifier for monitor (显示器设备号)
% INPUTDATAFILE = file name for input data (输入文件名)
% J, JJ = counter or dummy variable (记数变量)
% Jar(i) = advance ratio (进距比)
% Jmax = Advance ratio maximum (最大进距比)
% Jmin = Advance ratio minimum (最小进距比)
% Kgold = goldstein constant (goldstein常数)
% K(i,j) = array of goldstein constants (goldstein常数向量)
% KK=column number in matrix (矩阵列号)
% LDA = indicator of lift/drag adjustments (integer)
% =1 no CL/CD corrections
% =2 mach no. adjustments (glauert) (LDA=2马赫数调整)
% =3 Re adjustment (LDA=3雷诺数调整)
% =4 mach and Re adjustment (LDA=4 马赫数,雷诺数调整)
% MF = Conversion, MPH to FPS (英里/小时--英尺/秒)
% MPH = Miles per hour (飞行速度--Miles per hour)
% MT = mach number at tip (corrected for induced velocity) (桨尖马赫数,经诱导速度修正后)
%C MTUC = mach number at tip uncorrected(桨尖马赫数,经诱导速度修正前)
% N0= mach/reynolds number correction flag
% N = number of radial data points
% NB = number of blades
% NAIRFOILS = number of airfoils in the AIRFOIL data file
% NU = Kinematic viscosity(动黏度)
% PHI = angle of flow incident to blade(气流角)
% PI= 3.14159....
% PROPNAME = string variable identifier for prop(螺旋桨名称)
% Pn = 10^n; weird little variable used in rounding numbers
% R0-R8 = variables used in aerodynamic coefficient corrections
% Radius = propeller radius (inches)(直径--inches)
% RA = indication of analysis refinement (integer)
% =1 simple blade element theory(计算方法标志,RA=1,用simple blade element theory)
% =2 include induced velocity(计算方法标志,RA=2,用include induced velocity)
% =3 include induced velocity and tip losses(计算方法标志,RA=2,用 include induced velocity and tip losses)
% RE(i,j) = Reynolds number(雷诺数矩阵)
% REAFD = Reynolds number of the airfoil data(翼型临界雷诺数)
% RD = conversion, radians to degrees (弧度-- 变化-- 度)
% R(i) = radius inputs NONDIMENSIONAL(i.e.fraction of radius)(无量纲半径输入)
% RHO = atmospheric density(空气密度)
% ROWS= number of rows in a matrix
% RPM = revolutions per minute(转速-- revolutions per minute)
% S(i) = solidity at i ?
% SF = sine of angle phi(sin(φ))
% T(i) = thickness ratio at X(i) NONDIMENSIONAL(相对厚度)
% (i.e. thickness/local chord)
% Theta = induced angle of attack(诱导速度修正角)
% Ufixed = RPM - MPH indicator (integer)
% =1 MPH fixed
% =2 RPM fixed
% X(i) = % radial location
% Z(ijk) = table of airfoil aerodynamic coefficients(翼型气动系数表)
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -