Encyclopaedia Index
GENTRA USER GUIDE
CHAM Technical Report TR/211
PHOENICS Version 2021
Document last revised 16/07/21
Contents
1 Introduction
1.1 What GENTRA
is and does
1.2 Features of
GENTRA
1.3 Limitations
of GENTRA
1.4 How GENTRA
fits in
1.5 About this
Guide
1.6 Conventions
used in this Guide
2 The GENTRA Input
Menu
2.1 About this
chapter
2.2 About the
GENTRA Menu
2.3 The GENTRA
Main Menu panel
2.4 Help and
information
2.5 Particle
type
2.6 Physics of
current particle type
2.7 Boundary
conditions for particles
2.8 Numerical
controls
2.9 Input/Output
controls
2.10 Ending the
GENTRA Menu session
2.11 The GENTRA
Library
3 Using GENTRA PIL
3.1 Introduction
3.2 The Q1 file
generated by the GENTRA menu
3.3 GENTRA
declarations
3.4 GENTRA
Groups 1 to 4: GENTRA data
3.5 Provisions
for the EARTH run
3.6 Transmission
to EARTH
3.7 Exit and
symmetry patches
4 Running GENTRA
Earth
4.1 Introduction
4.2 The GENTRA
run
4.3 Results
produced by GENTRA
5 The GENTRA FORTRAN
5.1 Introduction
5.2 The
structure of GENTRA-EARTH
5.3 The FORTRAN
subroutine GENIUS
5.4 The property
function - GPROPS
5.5 Building
private versions of GENTRA
6 The GENTRA
Equations
6.1 Introduction
6.2 The
continuous-phase equations
6.3 Lagrangian
equations
6.4 Submodels
6.5 Integration
of the equations
6.6 Additional
information
Appendix A. Known
Limitations of GENTRA
Appendix B. List of
GENTRA PIL variables
B.1 Introduction
B.2 List of
variables
Appendix C. List of
GENTRA FORTRAN variables
C.1 Variables for
continuous phase
C.2 Variables for
particle phase
C.3 Printout
variables
C.4 Auxiliary
variables
Appendix D. List of
Run-Time Errors
D.1 Introduction
D.2 Warning
messages
D.3 Error
messages
D.4 Internal
errors
Appendix E. Listing
of the Q1 File for the Example
Appendix F. Contents
of the GENTRA Input Library
Appendix G. Listing of GENIUS
G.1
Listing of GENIUS
G.2
Listing of GENTRA
G.3
Listing of GPROPS
Appendix H. The
GENTRA Glossary
Appendix I.
References
I.1 Quoted in
this guide
I.2 Relevant CHAM
Technical Reports
Appendix J.
Nomenclature
Appendix K. GENTRA
Utilities
K.1 Plotting
Trajectories
K.2 Saving as a
case