Aeronautical Engineering/Expert Profile

Ask A Question


I can answer questions about aerodynamics (high speed and low speed), internal fluid flow, computational methods (CFD, some design, etc.)

Experience in the area

25+ Aerospace Engineering, University Professor


Mississippi State University AIAA SIAM




PhD Aerospace Engineering

Something controversial or provocative about this subject

(yes, that's a "not-so-recent" picture of me.................from the 60's)

Average Ratings

Recent Reviews from Users

Read More Comments

    K = Knowledgeability    C = Clarity of Response    P = Politeness
Prashant S Akerkar12/08/15101010Dear Mark Thanks. Thanks & Regards, Prashant .....
Mohammad06/18/14101010It appears the expert really got what .....
Anna05/27/14101010Thank you for your time.
(not given)05/20/14101010Thanks so much, you have provided very .....

Recent Answers from Mark Janus

2016-06-16 Plane Jump Scenario:

Both the plane and YOU are falling at the same speed thus you'd hit the water at the same speed as the plane (or ever so slightly lower if you jumped up)     That idea is similar to what is sometimes used

2016-02-17 Job:

What is a normal day on the job like?  busy teaching classes, grading work, and organizing research efforts  What are some of the best colleges to go to?  Mississippi State University (of course)...  seriously

2015-12-07 Helicopter Rotor Blades.:

Certainly there can be more than one set of rotor blades ...  coaxial counterrotating blades are designed to eliminate the residual swirl that any single rotor imparts to the flow (an inefficiency)..

2015-11-25 Thermoelectric balloon:

Sounds interesting...  you probably need to run some feasibility numbers ... basic things like weight of fabric, insulating properties of fabric, energy load, weight of solar cells, etc...    You've got

2014-07-01 Certain airflow conditions for aerodynamic bodies:

I'm guessing here you are meaning the "freestream conditions"...  typically we use STP (standard temperature and pressure) at sea level unless a particular problem states otherwise...    You can google


Ask A Question

Aeronautical Engineering

All Answers

Answers by Expert:

Ask Experts


©2017 All rights reserved.