Update of /cvsroot/jsbsim/JSBSim/utils/aeromatic++/Systems
In directory sfp-cvs-1.v30.ch3.sourceforge.com:/tmp/cvs-serv26167/aeromatic++/Systems
Modified Files:
Propulsion.cpp Thruster.cpp
Log Message:
Fix a bug: there are exceptions where an turbine engine with a bypass ration > 1.0 does have augmentation
Index: Propulsion.cpp
===================================================================
RCS file: /cvsroot/jsbsim/JSBSim/utils/aeromatic++/Systems/Propulsion.cpp,v
retrieving revision 1.38
retrieving revision 1.39
diff -C2 -r1.38 -r1.39
*** Propulsion.cpp 28 Jul 2016 10:58:29 -0000 1.38
--- Propulsion.cpp 7 Apr 2017 07:26:19 -0000 1.39
***************
*** 571,580 ****
if (_bypass_ratio < 0.07f) _bypass_ratio = 0.07f;
tsfc = 0.635f - 0.144f * log10f(_oapr) * log10f(_bypass_ratio);
- atsfc = 3.27f - 0.451f * log10f(2.9f * _oapr / _bypass_ratio);
}
! else
! {
tsfc = 0.7533f - 0.161f * log10f(0.0625f * _oapr * _bypass_ratio);
}
file.precision(1);
--- 571,579 ----
if (_bypass_ratio < 0.07f) _bypass_ratio = 0.07f;
tsfc = 0.635f - 0.144f * log10f(_oapr) * log10f(_bypass_ratio);
}
! else {
tsfc = 0.7533f - 0.161f * log10f(0.0625f * _oapr * _bypass_ratio);
}
+ atsfc = 3.27f - 0.451f * log10f(2.9f * _oapr / _bypass_ratio);
file.precision(1);
Index: Thruster.cpp
===================================================================
RCS file: /cvsroot/jsbsim/JSBSim/utils/aeromatic++/Systems/Thruster.cpp,v
retrieving revision 1.28
retrieving revision 1.29
diff -C2 -r1.28 -r1.29
*** Thruster.cpp 18 Aug 2016 12:52:40 -0000 1.28
--- Thruster.cpp 7 Apr 2017 07:26:19 -0000 1.29
***************
*** 139,142 ****
--- 139,148 ----
* Oak: 46
* Aluminum: 167
+ *
+ * The code is based on:
+ * PROPELLER BLADE ELEMENT MOMENTUM THEORY WITH VORTEX WAKE DEFLECTION
+ * M. K. Rwigema, 2010
+ * School of Mechanical, Industrial and Aeronautical Engineering
+ * http://www.icas.org/ICAS_ARCHIVE/ICAS2010/PAPERS/434.PDF
*/
void Propeller::bladeElement()
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