Dr. M Usman Butt

Freelancer in Design and Aerodynamics

Office: Finsterwalderstr 15, 03048 Cottbus, Germany

514 J heights, Nawab Town, 54000, Lahore, Pakistan

Phone: +49 176 65736171

Phone: +92 3171868153

email: mech.usmanbutt@gmail.com

Offered Services:

Conceptual Design, Data Analysis. Technical drawing, Detailed design

Education

PhD. Experimental Aerodynamics - Technical University of Cottbus, Germany, 2011-2014
MSc. Mechanical Engineering - University of Hannover, Germany, 2007-2009
BSc. Mechanical Engineering - Mannheim University of Applied Sciences, Germany, 2003-2007

Professional Activities

Services such as Conceptual design and Analysis of turbomachinery and industrial machinery are offered. Sample projects delivered are shown in following figures, which include small gas turbine and measurement apparatuses. Furthermore i am conducting Research and Development Pilot Projects in Pakistan and Germany. Recently, a research grant of 100,000 Euros has been awarded to me and Prof Ritschel to investigate the influence of Tubercles (small structures found on the Humpback of Whales) on wind turbine blades in a Wind tunnel. Based on the results of this Experimental Research a startup has been planned. Idea is to develop wind turbines and propellers having Tubercles on their leading edges. They will be quiter and more efficient than the traditional turbines and propellers.

Furthermore, some small projects such as Development of small gas turbine using an automobile turbocharger (Grant: 1 million PKR) has recently been completed.

Biography

An expert in Experimental Fluid dynamics, I did my Bachelors and Masters in Mechanical Engineering from Universities of Mannheim and Germany. During my studies i got the opportunity to gain initial industrial experience at EADS (European Air Defence and Space) and ELOPAK. I completed my PhD from the Technical University of Cottbus, Germany. My doctoral work focused on investigating drag reduction using structured surfaces in a wind tunnel. Several flow measurement techniques were not only implemented but also developed and refined during this work. After submitting the Dissertation i worked for Siemens in Berlin as Test Engineer. Again, the duties invloved development of temperature measuring probes for large Gas turbines. Currently i am teaching Fluid and Thermal Sciences at University of Lahore and University of Rostock as well as conducting indiginous Research and Development projects.

Employment history

Scientist - University of Cottbus, Germany, 2020 - 2022
Visiting Scientist - University of Rostock, Germany, 2019 - 2020
Assistant Professor - University of Lahore, Pakistan, 2015 - 2020
Research Engineer - Siemens Power, Germany, 2014
Research Associate - Technical University of Cottbus, 2011-2013
Design engineer - AEDesign, Lahore, Pakistan, 2009-2011

Expertise

Design and Development of Fluid flow setups (e.g. Air machines, Wind tunnels, Gas turbines etc
Generation of 3D and 2D drawings in solidworks
Classical measurement techniques ( Pressure, temperature, RPM, load cells)
Advanced measurement techniques (LDA, HWA, PIV )
Data & Signal analysis
Flow Visualization techniques

Language skills

- Fluent in German
- Fluent in English
- Beginner in French

Publications

Butt U, Schacht S, Ritschel U, 'Experimental Investigation of flow over NACA airfoils 0021 & 4412 with Tubercles' Journal of Thermophysics and Aeromechanics (submitted)

Butt U, C Egbers, 'Influence of hexagonal structures on drag reduction in a set of plates installed at different angles of attack' Journal of Advanced Fluid Mechanics (submitted)

Butt U., 'Effect of a novel combustor design on the performance of turbocharger based gas turbine' Jounal of Mechanical Science and technology' (accepted)

Butt U, 'Converting and automobile Turbocharger into a micro Gas turbine' International Conference on Power, Energy and Mechanical Engineering' Feb 16-19, 2019, Prague, Czech Republic.

Butt, U., Egbers, C., ‘Skin friction measurements on structured surfaces using Clauser-chart method and oil film Interferometry’, Journal of Thermophysics and Aeromechanics, Vol. 25, Nr 3, pp 367-375 2018

Butt, U., Egbers, C., ‘Flow structure due to hexagonal structured surfaces’, Journal of Thermophysics and Aeromechanics, Vol. 23, Nr. 6 pp 671-680, 2016

Butt U, Jehring L, Egbers C, 'Mechanism of drag reduction for circular cylinders with patterned surface',International Journal of heat and fluid Flow, Vol. 45, 2014, 128-134

Butt, U., Egbers, C., 'Aerodynamic characteristics of flow over circular cylinders with patterned surface,' International conference on Fluid Dynamics and Thermodynamics, 15-16 March, 2013, Istanbul, Turkey

Butt, U., et al, ' Investigation of flow over bluff bodies with patterned surface using Laser-Doppler Anemometry,' Fachtagung “Lasermethoden in der Strömungsmesstechnik” 4-6 September 2012, Rostock, Germany