X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FFDM%2FYASim%2FAtmosphere.cpp;h=5fb7347f94f42e8a5ed3472bb6fc1396c675f8b1;hb=d66903e9ad63b91182ccc25d9bb82f18f8dd98b6;hp=92d2fbe56a6e3495762d2c2ffff5c96c42e134e8;hpb=1e5d48d1d97cafef7315e3e9688c807142b945b0;p=flightgear.git diff --git a/src/FDM/YASim/Atmosphere.cpp b/src/FDM/YASim/Atmosphere.cpp index 92d2fbe56..5fb7347f9 100644 --- a/src/FDM/YASim/Atmosphere.cpp +++ b/src/FDM/YASim/Atmosphere.cpp @@ -7,8 +7,10 @@ namespace yasim { // McCormick lists 299.16/101325/1.22500, but those don't agree with // R=287. I chose to correct the temperature to 288.20, since 79F is // pretty hot for a "standard" atmosphere. +// Numbers above 19000 meters calculated from src/Environment/environment.cxx // meters kelvin Pa kg/m^3 -float Atmosphere::data[][4] = {{ 0.0f, 288.20f, 101325.0f, 1.22500f }, +float Atmosphere::data[][4] = {{ -900.0f, 293.91f, 111679.0f, 1.32353f }, + { 0.0f, 288.11f, 101325.0f, 1.22500f }, { 900.0f, 282.31f, 90971.0f, 1.12260f }, { 1800.0f, 276.46f, 81494.0f, 1.02690f }, { 2700.0f, 270.62f, 72835.0f, 0.93765f }, @@ -29,7 +31,20 @@ float Atmosphere::data[][4] = {{ 0.0f, 288.20f, 101325.0f, 1.22500f }, { 16200.0f, 216.66f, 10033.0f, 0.16133f }, { 17100.0f, 216.66f, 8712.0f, 0.14009f }, { 18000.0f, 216.66f, 7565.0f, 0.12165f }, - { 18900.0f, 216.66f, 6570.0f, 0.10564f }}; + {18900.0f, 216.66f, 6570.0f, 0.10564f }, + {19812.0f, 216.66f, 5644.0f, 0.09073f }, + {20726.0f, 217.23f, 4884.0f, 0.07831f }, + {21641.0f, 218.39f, 4235.0f, 0.06755f }, + {22555.0f, 219.25f, 3668.0f, 0.05827f }, + {23470.0f, 220.12f, 3182.0f, 0.05035f }, + {24384.0f, 220.98f, 2766.0f, 0.04360f }, + {25298.0f, 221.84f, 2401.0f, 0.03770f }, + {26213.0f, 222.71f, 2087.0f, 0.03265f }, + {27127.0f, 223.86f, 1814.0f, 0.02822f }, + {28042.0f, 224.73f, 1581.0f, 0.02450f }, + {28956.0f, 225.59f, 1368.0f, 0.02112f }, + {29870.0f, 226.45f, 1196.0f, 0.01839f }, + {30785.0f, 227.32f, 1044.0f, 0.01599f }}; // Universal gas constant for air, in SI units. P = R * rho * T. // P in pascals (N/m^2), rho is kg/m^3, T in kelvin.