A5052374654- Gas Dynamics and Kinetic Theory
- Plasma Diagnostics and Applications
- Astro and Planetary Science
- Ionosphere and magnetosphere dynamics
- Laser-induced spectroscopy and plasma
- Spacecraft Design and Technology
- Space Satellite Systems and Control
- Spacecraft Dynamics and Control
- Computational Fluid Dynamics and Aerodynamics
- Planetary Science and Exploration
- Spacecraft and Cryogenic Technologies
- Plasma Applications and Diagnostics
- Atmospheric Ozone and Climate
- Rocket and propulsion systems research
- Electrohydrodynamics and Fluid Dynamics
- Analytical Chemistry and Sensors
- Gas Sensing Nanomaterials and Sensors
- Vacuum and Plasma Arcs
- Particle Dynamics in Fluid Flows
- Spaceflight effects on biology
- Solar and Space Plasma Dynamics
- Space exploration and regulation
- Algal biology and biofuel production
- Laser Design and Applications
- Atmospheric chemistry and aerosols
University of Stuttgart
2016-2025
Aalborg University
2021
TU Dresden
2001-2011
Dr. A. Ramachandran's Diabetes Hospitals
2010
Institute of Space Science - INFLPR Subsidiary
2010
Aerospace Institute (Germany)
2010
Abstract This article presents the full operational experimental capabilities of plasma wind tunnel facilities at Institute Space Systems University Stuttgart. The simulation aerothermodynamic environment experienced by vehicles entering atmosphere Earth is attempted using three different facilities. Utilizing facilities, recent improvements enable a unique range flow conditions in relation to other known Recent performance optimisations are highlighted this article. Based on demonstrated...
A novel solid electrolyte sensor with considerably improved response times is presented. The new so-called eFIPEX [etched flux (Φ) probe experiment] based on the FIPEX [flux applied for measurement of molecular and atomic oxygen concentrations. main application atmospheric aboard sounding rockets up to altitudes 250 km. employs a manufacturing technique its electrodes combining two steps—the deposition platinum films polyol process electrochemical etching carve out electrode geometry....
The space sector has experienced significant growth in recent years, with rocket launch rates increasing by over 20% since 2019. In its 2022 Scientific Assessment of Ozone Depletion the World Meteorological Organization cautions that future increases rates, adoption new propellants like hydrogen and methane, emissions from reentering objects could significantly influence ozone levels . Therefore, creation evaluation emission inventories activities, which can be used atmospheric chemistry...
<title>Abstract</title> The Direct Simulation Monte Carlo (DSMC) method is a crucial tool for calculating the aerodynamicsof satellites in Very Low Earth Orbit (VLEO). However, DSMC simulations fall short providinghigh-precision gas-surface scattering models. Implementing such model could vastly enhance missionplanning and fuel requirement calculations, ultimately extending operational lifetimes reducingcosts. Moreover, ability to utilize aerodynamic lift altitude orbit control reduces...
A combined approach for the simulation of reactive, neutral, partially or fully ionized plasma flows is presented. This realized in a code framework named “PICLas” approximate solution Boltzmann equation by particle based methods. PICLas combines particle-in-cell method collisionless Vlasov–Maxwell system and direct Monte Carlo neutral reactive flows. Basic physical mathematical modeling both methods addressed, some application examples are presented order to demonstrate capabilities broad...
Abstract. The middle- and upper-atmospheric energy budget is largely dominated by reactions involving atomic oxygen (O). Modeling of these processes requires detailed knowledge about the distribution this species. Understanding mutual contributions wave motions to atmospheric heating main goal rocket project WADIS (WAve propagation DISsipation in middle atmosphere). It includes, amongst others, our instruments for measurement that have both been developed with aim resolving density...
Two-photon absorption laser-induced fluorescence measurements have been conducted to investigate atomic oxygen temperature and number density in a plasma relevant Martian entry. The high-enthalpy flow has produced by an inductively heated generator. This paper describes the experimental setup shows applicability of laser diagnostics Mars-relevant plasmas. Particular emphasis is put on use generated data for numerical simulation aerothermal chemistry Relative signals are calibrated procedure...
A first sounding rocket campaign dedicated to investigate the creation mechanism of Polar Mesosphere Winter Echoes (PMWE) was conducted in April 2018 from north Norwegian Andøya Space Center (69 °N, 16 °E). Two instrumented rockets were launched on 13th and 18th under PMWE non-PMWE conditions, respectively. In this paper we give an overview mission. We describe discuss some results combined situ ground-based measurements which allow verify existing theories. Our ultimately show that: a)...