Supersonic Flow of Chemically Reacting Gas-Particle Mixtures - Volume II - RAMP -A Computer Code for Analysis of Chemically Reacting Gas-Particle Flows - Documentation

Sep 15, 2026

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Supersonic Flow of Chemically Reacting Gas-Particle Mixtures Volume II documents the RAMP computer code and its use for analyzing chemically reacting gas-particle flow fields. The report explains how RAMP relates to companion programs, including NASA-Lewis TRAN72 and related documentation, and clarifies program input and output organization. It further outlines RAMP capabilities and limitations, input guide structure, and the output formats for printed and binary results, supporting exhaust plume and nozzle analyses.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages449

Reading Time18 h 51 min

AccessFree to download

FOREWORD

1 INTRODUCTION AND SUMMARY

2 USER'S INPUT/OUTPUT GUIDE FOR THE MODIFIED TRAN72 COMPUTER CODE

2.1 Use of the Modified TRAN72 Program with the RAMP Program

2.2 Use of the Modified TRAN72 Program with the VOFMOC Program

3 REACTING AND MULTIPHASE (RAMP) COMPUTER PROGRAM

3.1 Capabilities and Limitations

3.2 User's Input Guide for the RAMP Program

3.3 Output Format

3.4 Program Utilization Comments

3.5 Brief Description of Routines in Functional Groupings

3.6 Detailed Discussion of the Individual Routines

3.7 Example Problems

4 CONCLUSIONS

5 REFERENCES

Appendixes

"144::,_”。::45 14753.2 SUPERSONIC FLOW 0F CHEMICALLY REACTINGGAS-PARTICLE MIXTURES Volume Ⅱ RAMP -A Computer Code for Analysis of Chemically Reacting Gas-Particle Flows Morris M.PennySheldon D.SmithPeter G.Anders0nPeter R.SulymaMorcus L.Pearson 23 1山 … -1…T】 Lockheed Missiles &Space Company,Inc.Hunisville Research &Engineerirg Centor4800 Bradford Drive,Huntsville,AL 35807 January 1976Contract NAS9-14517 Prepared for National Aeronautics and Space AdministrationJohnson Space CenterHouston,TX 77058 N76-21279 HC 51.75 Unclas G3/20 21586 100 Page intentionally left blank FOR EWORD This document is Volume II of a two volume report describing the Re-actng and Multi-Phase(RAMP)Computer Code developed by the AdvancedTechnology Systems Section of Lockheed's Huntsville Research &EngineeringCenter.Volume II addresses the computer code along with the program inputand output.Volume I deals with the theory and numerical solution for thecomputer code. Documentation of the computer code was prepared in partial fulfillmentof contract requirements(Contract NAS9-14517)with the NASA-Johnson SpaceFlight Center,Houston,Texas,in support of Space Shuttle related exuaustplume applications.The contracting officer's technical representative forthis study was Mr。Barney B.Roberts of the Aerodynamics Systems AnalysisSection. The authors acknowledge the efforts of a number of individuals whocontributed to the development of the RAMP code.These include Dr.Terry F.Greenwood and Mr.David C.Seymour of the NASA-Marshall Space FlightCenter;and Messrs,Robert J.Prozan,Jon A.Freeman,L.Ray Baker and A.W.Ratliff of Lockheed-Huntsville.Ideas and suggestions for improvementof the analysis are reflected by frequent consultation with these individuals. Companion documents to this report include a theory and numericalsolution document for the RAMP computer code;a report which describes themodifications made to the NASA-Lewis TRAN72 computer code;and documenta-tion of a one-dimensional solution which provides a supersonic startline forthe RAMP code.These documentation are,respectively: LOCKHEED-HUNTSVILLE RESEARCH&ENGINEERING CENTER 1 —1 1 ● "Supersonic Flow of Chemically Reacting Gas-Particle Mixtures一Volume I一A Theoretical Analysis and Development of theNumerical Solution, LMSC-HREC TR D496555-I. ● "Users Guide for TRAN72 Computer Code Modified for use withRAMP and VOFMOC Flowfield Codes,LMSC-HR EC TM D390409. ● General One-Dimensional Flow of Gas-Particle System," LMSC-HR EC TM 390876. LOCKHEED·HUNTSVILLE RESEARCH&ENGINEERING CENTER 3 l………;…………m …-t … ,wT2 T3 4h33?a…*出i…… 钢解…一… CONTENTS Pag Section FOREWORD 1INTRODUCTION AND SUMMARY1-1 2USER'S INPUT/OUTPUT GUIDE FOR THE MODIFIED2-1TRAN72 COMPUTER CODE 2.1 User of the Modified TRAN72 Prog ram with the2-1RAMP Program 2.2 Use of the Modified TRAN72 Prog ram with the2-6VOFMOC Prog ram REACTING AND MULTIPHASE(RAMP)COMPUTER3-1PROGRAM 3 3.1 Capabilities and Limitation s3-15 3.2 User's Input Guide for the RAMP Program3-19 3.2.1 RAMP Prog ram Input Information3-19 3.2.2 Control Card Set-Up for Univac 1108 Exec 83-47and Prog ram Overlay Struc ures 3.3 Output Format 3-51 3-51 3.3.1 Description of Printed Output 3-91 3.3.2 Description of Unformatted Binary Output 3-96 3.4 Program Utilization Comments 3.4.1 Mesh Control Variables 3-96 3-103 3.4.2 Explanation of Error Messages and Other Messages 3.4.3 Problems Commonly Encountered and Suggested 3-107 Fixes 3-114 3.5 Brief Description of Routines in Functional Groupings 3-114 3-117 3-117 3-118 3-119 3-119 3-120 3-120 3.5.1 General Flow Properties Routines 3.5.2 Shock Calculation Routines 3.5.3 Input Routines 3.5.4 Logic Control Routines 3.5.5 Free Molecular Routines 3.5.6 Output Routines 3.5.7 Tran sonic Routines 3.5.8 Startline Routines SectionPage33.5.9 Boundary and Problem Limit Routines3-121 3.5.10 Interp

FAQs

What does Volume II of this report focus on?

Volume II focuses on the RAMP computer code for analysis of chemically reacting gas-particle flow fields, including how the program input and output are handled.

Which other computer programs are referenced as companion documentation?

The report references companion documents including a theory and numerical solution document for RAMP, modifications to the NASA-Lewis TRAN72 code, and a one-dimensional solution that provides a supersonic startline for RAMP.

How are RAMP outputs presented in the report?

RAMP outputs are described in terms of printed output and unformatted binary output, with sections explaining the format and descriptions of each output type.

Sep 15, 2026

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