some samcef thermal uses for liquid propulsion rocket engines
TRANSCRIPT
Patrick Danous
19/10/2004
Some SAMCEF Thermal Some SAMCEF Thermal uses for liquid propulsion uses for liquid propulsion
rocket engines rocket engines
SNECMA SNECMA Patrick DANOUSPatrick DANOUS
Patrick Danous
19/10/2004
Summary
Introduction
CAD & Calculation tools at Snecma MoteursVernon
Performed SAMCEF Thermal developments
Some examples of SAMCEF Thermal uses
Perspectives
Patrick Danous
19/10/2004
Introduction
Snecma Moteurs DMF Vernon & Kourou 1250 peopleRocket engines development
and production
From Ariane 1 to 5
Mastering fluids from 20K to 3000 K
25 years in Dec 2004 !!!
Patrick Danous
19/10/2004
CAD & Calculation tools
CAD and pre - processing
Thermal and mechanical
CFD
Patrick Danous
19/10/2004
Performed SAMCEF Thermal developments
Thermo-hydraulic coupling (with an internal tool)
3D Multi-shell & tube elements
Mutual radiation for those elements
Assembly capabilities
Patrick Danous
19/10/2004
Some examples
LOX Injector behaviourValve & Injector assembly
Transient
3D Thermal conduction
Imposed internal convection
Patrick Danous
19/10/2004
Some examples
Nozzle thermal calculation Mutual radiation
Multi-layer shell element
Perfect contact
Transient
Patrick Danous
19/10/2004
Some examples
Turbine bladesLow cycle fatigue objective
Thermal choc
2D axi
Patrick Danous
19/10/2004
Some examples
Oxygen Turbo-pump Carbon ring unusual wear
3D Volume
Radiative & convective loads
Transient
Patrick Danous
19/10/2004
Some examples
Engine behaviour3D Radiation
Transient (multi boost)
Sub-system integration
Thermal specification for
components
Patrick Danous
19/10/2004
Some examples
Turbo-pump childown(1/2)
Bear temperature
2D axisymetrical
Hydraulic coupling
Network
3_12_1
5_110_1
11_1
23_122_125_1
24_11_1
1_2
1_3
1_5
4_1Alimentationpalier arrière
6/9_1
12_1346_1
Patrick Danous
19/10/2004
Some examples
Turbo-pump cooldown(2/2)
Model validation (wall temperature)
TPCAPO1MEF TPO Vinci
50
100
150
200
250
300
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Temps [s]
Tem
péra
ture
[K
]
Essai TPO1_01Nœud 30020 (SAMCEF-carter entrée pompe)
Patrick Danous
19/10/2004
Some examples
Turbo-pump cooldownBear temperature
3D with network
Transient
Patrick Danous
19/10/2004
Perspectives
Integration with CATIA V5 in terms of pre-post processing
Two-phases flows, transient, network modelling (COMETE project)
CFD and thermal (+ mechanical) coupling
Patrick Danous
19/10/2004
Thank you !