News

The non-paper session ” How to name a laser diagnostics ( Dr. Miles 80th)? has a great success with lots of participants and attendees!!

From left to write: Dr. Leonov, Dr. Michael, Dr. Yalin, Dr. Shneider, Dr. MILES, Dr. Adamovich,

Dr. Limbach, Dr.Tropina, Dr. Laux.

 

Great thanks to Dr. Sagar Pokharel presenting on the PDL session

” Plasma enhancement of fs-filament in 𝑁2-𝑂2 mixture with ns-heating pulse”.

Congratulations to Dr. Pokharel on his new journey as a Postdoc Research Associate   in the University of Texas at Austin!

Aviation Forum 2024, Las Vegas, 29 July- 2 August 

Great thanks to  Jake Letkemann, Juan Anaya and Eben Anderson-Ciccone for their excellent work and presentations!

1. J. Letkemann, A. Tropina, R.B. Miles, Analysis of Refractive Index Changes Near the Ablative Surface of Hypersonic Vehicles, Aviation Forum, 2024, 29 July- 2 August, Las Vegas, NV, AIAA-Paper 2024-3983.
2. E. Anderson-Ciccone, N. Sai Kolappan, A. Tropina, N. Tichenor, Optimization of Antenna Positions and Electromagnetic Mitigation Techniques in Hypersonic Flows, Aviation Forum, 2024, 29 July- 2 August, Las Vegas, NV, AIAA-Paper 2024-4310.
3. J. Anaya, A.Tropina, R.B. Miles, M.Grover, Interferometric study of air under thermochemical nonequilibrium,  Aviation Forum, 2024, 29 July- 2 August, Las Vegas, NV, AIAA-Paper 2024-4589.

From left to right;

Jake Letkemann -PhD student; Eben Anderson-Ciccone- MS student; Dr. Albina Tropina,

Juan Anaya – MS student ( MS thesis defense was in May 2024).

 

 

 

Congratulations to Sagar Pokharel for successfully defending his PhD degree!

“Self-consistent Modeling of Laser-induced Non-equilibrium Plasma”

21 May 2024, 2 pm, ALLEMO, Texas A&M University, Aerospace Engineering Department

   

Congratulations to Juan Anaya for successfully defending his Master’s degree!

ADVANCED LASER DIAGNOSTICS FOR REFRACTIVE INDEX MEASUREMENTS IN
                              HYPERSONIC FLOWS

May 20, 2024, 2 pm,  ALLEMO conference room, Texas A&M University

Motivation: Quantify aero-optical phenomena in hypersonic flows, focusing on how thermal and chemical non-equilibrium affect the refractive index of shock-heated air.

Thanks Sagar,  Juan and Hunter for excellent presentations on the SciTech 2024!

“Refractive index modification induced by femtosecond laser filament”;

and

“Refractive index field in high-speed flows: ionization effects”.

From left to to right:

Hunter Hadden – undergraduate student ( graduated May 2024);

Sagar Pokharel- PhD  student ( will graduate in August 2024);

Dr. Albina Tropina;

Dr. Richard Miles;

Juan Anaya- MS student ( will graduate in August 2024).

Congratulations to Sagar Pokharel with the new paper ” Self-consistent model and numerical approach for laser induced non-equilibrium plasma” published in the Journal of Applied Physics !

https://doi.org/10.1063/5.0175177

Great job!!

Numerical simulation of laser heating and evaporation of a single droplet.

Sagar Pokharel, Albina Tropina and Mikhail N. Shneider, “Numerical simulation of laser heating and evaporation of a single droplet”. Energies, 16(1),388 (2022); [https://doi.org/10.3390/en16010388]

The evaporation model, which was implemented in OpenFoam can be download from here:

https://drive.google.com/drive/folders/1g1qFV2XEiXGZQn6W_APhYKzRjmRm_fBa?usp=sharing

The work was partially supported by the Princeton Collaborative Research Facility (PCRF), supported by the U.S. Department of Energy (DOE) under Contract No.DE-AC02-09CH11466. Authors also acknowledge support from the U.S. DOE Office of Science Award No. DE-SC0022063.

ALLEMO Lab group on the Aviation Forum ( from left to right): Dr. B. Leonov, Prof. R.B. Miles, Prof. A.Tropina, MS Student  Juan Anaya.

Thanks to  Mr. Juan Anaya for his great presentation on the Aviation Forum-2023!

“Refractive Index of Diatomic Species for Nonequilibrium Flows”

 

Nicholas Manavi received his Master’s degree and got a job at Los Alamos National Laboratory!!

Best wishes in future endeavors and discoveries!!!

 

Congratulations to Sagar Pokharel with the paper published in Energies!

Sagar Pokharel, Albina Tropina and Mikhail N. Shneider, “Numerical simulation of laser heating and evaporation of a single droplet”. Energies, 16(1),388 (2022); [https://doi.org/10.3390/en16010388]

The work was partially supported by the Princeton Collaborative Research Facility (PCRF), supported by the U.S. Department of Energy (DOE) under Contract No.DE-AC02-09CH11466. Authors also acknowledge support from the U.S. DOE Office of Science Award No. DE-SC0022063.