MAE 6530 - Propulsion Systems II
Links to Recorded Lectures, Fall 2021
Week 1
- Lecture 1, August 30 2021 (1 - hr, F2F)
- Lecture 2, September 1 2021 (2 - hr, F2F)
- M.O.C Algorithm Development Via the "Running Method" (Concluded)
- Calculation ExampleMinimum Length Nozzle Example
- Minimum Length Conical nozzle and the "2/3rds" Rule.
- Approximate Nozzle Mapping Methodsm, fitting the Bell curve to the Nzzle Turning Section
Week2
- Lecture 3, September 8 2021 (2 - hr, F2F)
- M.O.C Review
- Review of Ambient Pressure Effects on Nozzle
- Introduction to Aerospike Nozzle Design Using M.O.C.
Week3
- Lecture 4, September 13 2021 (1 - hr, Virtual)
- Spike "Prescription" Agorithm
- Calculating the Design Condition Thrust
- Homework 1.2, M.O.C. Minimum Length Nozzle, Review and AnalysisHomework 2 review
- Example Aerospike Calculations
- Off Design Operating Properties --> Underexpanded
- Homework 1.3 Preview
- Delta 2 Launch Example
- Rs-27A Aerospike Replacement
Week4
- Lccture 7, September 20, 2021 (1 - hr, virtual)
- Lecture 8, September 22, 2021 (2 - hr, F2F)
- Review of Delta 2 Launch Example
- Rs-27A Aerospike Replacement Example
Effects of Truncation, continued
- Applications and Examples,Comparison to Minimum Length Nozzle
- High Expansion Ratio Nozzles
- Aerospike Nozzle Concluded
- Intrduction to Conical Shockwaves
Week5
- Lecture 9, September 27, 2021 (1 - hr, virtual)
- Deriving the Euler Equations from the Integral Conservation Equations
- Taylor-Maccol Equations for Conical Shockwave
- Conical Shockwave Solution Algorithm
- Lecture 10, September 29, 2021 (2 - hr, F2F)
- Taylor-Maccol Equations for Conical Shockwave
- Re-writing non-dimensional Equations as State-Space Problem
- Boundary Conditions
- Solution Methods
- Qualitative Aspects of Cone Flow
Week6
- Lecture 11, October 4, 2021 (1 - hr, virtual)
- Taylor-Maccol Solution Methods (revisited)
- Qualitative Aspects of Cone Flow
- Effect of Angle of Sttack on Supersonic Cone Flow
- Re-formulation of Taylor Maccol Equations for small angle of attck perturbations
- NASA SP-3004
- NASA SP-3007
- Lecture 12, October 6, 2021 (2 - hr, F2F)
- Hybrid Rocket Systems Overview
- Hybrid, Pro's and Con's
- Hybrid Rocket Combustor Ballistic Equations
- Regression Rate Modeling
- Wall Blowing and the "air hockey" effect
- Reynolds Analogy
- Blasius Skin Friction law
Week7
- Lecture 11, October 11, 2021 (1 - hr, virtual)
- Aerospike Problem (delta II) Algorithm Recap
- RS-27A Conical Nozzle (Nominal Delta II Solution) Payload Analysis (Part 1)
- Aerospike Design
- RS-27A Truncated Aerospike Nozzle Payload Analysis (Part 1)
- Lecture 12, October 13, 2021 (2 - hr, F2F)
- Collected Hybrid Rocket Algorithm
- O/F Shift in Hybrid Rocket Motors
- Regression Rate Modeling
- Collected Hybrid Rocket Algorithm
- O/F Shift in Hybrid Rocket Motors
Week 8
- Lecture 13, October 18, 2021 (1 - hr, virtual)
- Delta II Mission Analysis
- RS-27A Conical Nozzle (Nominal Delta II Solution) Payload Analysis (Part 1)
- Aerospike Design (Part 2)
- (Nominal Delta II Solution) Payload Analysis (Part 3)
- Hybrid Rocket Combustor Ballistic Equations (continued)
- Collected Hybrid Rocket Algorithm, Review
- O/F Shift in Hybrid Rocket Motors, Review
- Hybrid Ballistic Example Review
- Accounting for the Effects of Total Massflux on Regression Rate
- Lecture 14, October 20, 2021 (2 - hr, F2F)
- Hybrid Assignment Review
- Incompressible Injector Equation
- Pousielle Flow
- Direct Calculation of Discharge Coefficient
- Sample Calculations
- Injectors, Corrrection for Compressible Flow
- Subcritical Flow
- Supercritical (Choked) Flow
- Lecture 15, October 25, 2021 (1 - hr, virtual)
- Lecture 16, October 27, 2021 (2-hr F2F)
- Injectors, Corrrection for Compressible Flow
- Corrrection for Compressible Flow (Revisited)
- Compressible Bernoulli Equation
- Compressible Hybrid Project, Preview
- Lecture 17, November 1, 2021 (1 - hr, Virtual)
- Injectors, Corrrection for Compressible Flow (Revisited)
- Compressible Bernoulli Equation
- Corrrection for Compressible Flow
- Subcritical Flow
- Supercritical (Choked) Flow
- Calculation for the Incompressible Cv, Cd from ASME ASM-14M-2001
- Examples Calculations for ...
- Stagnation Pressure
- Massflow
- Reynolds Number
- Cv_inc
- Cd_inc
- Cd_compressible
- Lecture 18, November 3, 2021 (2 - hr, F2F)
- Operations Envelope for Various Flight Vehicles
- Airbreathing Propulsion Basics
- Brayton Cycle for Airbreathing Combustion
- Idealized Thermodynamic Model of Turbojet Engine
- Jet Engine Performance Parmeters
- Propulsive Efficiency
- Thermal Efficiency
- Total Efficiency
- Specific Thrust of Air Breathing Engine
- Air to Fuel Ratio Computations
- Equivalence Ratio versus Mixture Ratio
- Lean Burning: Why an Afterburner Works
- Thrust Specific Fuel Consumption
- Breguet Aircraft Range Equation
- Comparison to Rocket Equation
- HW 4.1 Assignment Preview
- Lecture 19, November 8, 2021 (1 - hr, virtual)
- HW 3.1 review
- Jet Engine Performance Parmeters, Revisited
- Propulsive Efficiency
- Thermal Efficiency
- Total Efficiency
- Introduction to Ramjet Cycle
- Ramjet as a Brytn Cycle
- Thermal Efficiency of a Ramjet
- Turbojet as an Alternative Propulsion Cycle
- Turbojet Analysis Station Definitions
- Turbojet as an Idealized Brayton Cycle
- Lecture 20, November 10, 2021 (2 - hr, F2F)
- Homework 4.1 Preview and Expectations
- Normalized Thrust, Isp of an Idealized TurboJet
- Turbojet Parametric Model
- Turbojet Cycle example calculation
- Lecture 21, November 15, 2021 (1 - hr, virtual)
- Homework 4.1, 4.2assignment
- Homework 3.1 Review
- Turbojet Parametric Model Review
- Turbojet Massflow Matching Conditions
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- Lecture 22, November 17, 2021 (2 - hr, F2F)
- HW 3.2 Review
- Matching Conditions Continued
- Lecture 23, November 22, 2021 (1 - hr, virtual)
- Matching Conditions Review
- HW 5.2 review
- Example Problem
Week 14
- Lecture 24, November 29, 2021 (1 - hr, virtual)
- Effect of Afterburner on Matching Conditions
- All About Compressors
- TurboJet Operating Line
- Compressor Map
- Corrected Massflow and Rotor Speed
- Stall/Surge Line
- Choking Line
- Surge Margin
- 2-Spool Compressor Design
- TurboJet Operating Line (Review)
- 2-Spool Compressor Design
HW 5.4 Assignment
- Lecture 25, December 1, 2021 (2 hr - F2F)
- Homeworks 4.1, 4.2 Review
- Effect of Throttle on Compressure Demand, Inlet Area
- Supersonic Inlet Operation
- Subcritical
- Critical
- Supercritical
- End-to_End Calculation Example
- Non-Ideal Opersting Conditions
- Effect of Burner Exit Mach number
- Compressor/Turbine Efficiencies
- Polytropic expansion correction
Week 15
- Lecture 26, December 6, 2021 (1 - hr, virtual)
- Introduction to Turbofan cycle
- Thrust Decomposition for Core and Bypass Flows
- Turbine and Fuel/Airflow Matching Conditions
- Example Problem, Effect of Bypass Ratio
- Optimal Bypass Ratio Analysis
- Lecture 27, December 8, 2021 (2 - hr, F2F)
- Turbofan Cycle Review
- HW 6.1Assignment
Week 16
- Lecture 28, December 13, 2021 (2 - hr, F2f)
- Final Exam Period, 4:00-6:00
- MAE Conf. Room
- Turbofan Assignment (6.2), Oral Solutions Reviews
- Pizza and Drinks to be Supplied