A5089652526- Radiative Heat Transfer Studies
- Thermoelastic and Magnetoelastic Phenomena
- Thermoregulation and physiological responses
- Infrared Thermography in Medicine
- Photoacoustic and Ultrasonic Imaging
- Heat Transfer and Optimization
- Heat Transfer Mechanisms
- Nanofluid Flow and Heat Transfer
- Thermal Radiation and Cooling Technologies
- Photovoltaic System Optimization Techniques
- Solar Thermal and Photovoltaic Systems
- Lattice Boltzmann Simulation Studies
- Heat Transfer and Boiling Studies
- Laser-Plasma Interactions and Diagnostics
- Fluid dynamics and aerodynamics studies
- Optical Imaging and Spectroscopy Techniques
- solar cell performance optimization
- Tribology and Lubrication Engineering
- Fluid Dynamics and Vibration Analysis
- Optical Systems and Laser Technology
- Advanced Optical Sensing Technologies
- Fluid Dynamics and Turbulent Flows
- Urban Heat Island Mitigation
- Machine Learning in Materials Science
- Computational Fluid Dynamics and Aerodynamics
National Institute of Technology Rourkela
2019-2024
Indian Institute of Technology Bombay
2014-2022
Uttarakhand Technical University
2018
University of Kerala
2017
Indian Institute of Technology Kharagpur
2015
Chronic hypertension is a significant risk factor for intracranial aneurysm (IA) formation, growth, and rupture. This work aims to predict the hemodynamics in unruptured IAs investigate impact of necking bulging, along with hypotension on same. We simplified patient-specific IA geometry from literature employed two velocity profiles our three-dimensional unsteady computational fluid dynamics simulations. The blood modeled as Newtonian, vessels are non-deforming. fast Fourier transform study...
The current work is related to the numerical investigation of non-Fourier heat transfer inside short-pulsed laser-irradiated axisymmetric soft tissue phantom. It utilizes modified discrete ordinate method solve transient radiative equation (TRTE) for determining intensity field. laser energy absorbed by phantom behaves like a source in Fourier/non-Fourier conduction model based-bio-heat (BHTE), which solved employing finite volume (FVM) determine temperature distribution. Despite prevalent...
Thermal analysis of tissue phantoms subjected to short pulse laser irradiation has been presented. The transient radiative transfer equation (RTE) solved using a novel separation variables-based discrete method (DTM) recently developed by the present authors (Nirgudkar et al. [21 H. Nirgudkar, S. Kumar, and A. Srivastava, Solution Radiative Transfer Equation Using Discrete Method for Two-Dimensional Participating Medium, Int. Commun. Heat Mass Transfer, vol. 61, pp. 88–95, 2015.[Crossref],...
Abstract This article proposes the closed-form solution of generalized non-Fourier model-based bioheat transfer equation (BHTE) in Cylindrical coordinates to understand thermal behavior living tissue heated by a pulsed laser. The axisymmetric exposed non-Gaussian temporal profile laser heating has been considered investigate phenomena. BHTE with time-dependent energy generation obtained through finite integral transform (FIT) technique. analytical was juxtaposed corresponding numerical order...
Abstract The present research focuses on examining the thermic response of living tissue in form a triple‐layered cylindrical structure when subjected to laser light and compatibility analysis non‐Fourier heat transfer with thermodynamics second law. temperature field is determined by numerically solving transient radiative equation conjunction dual phase lag (DPL) based bioheat equation. Once known, equilibrium nonequilibrium entropy production rate (EPR) calculated hypothesis classical...
Abstract Intracranial aneurysms (IAs) are localized dilations along the blood vessels of cerebral artery. The rupture these IAs leads to subarachnoid hemorrhage, which has a very high mortality rate. So, it is essential understand flow behavior and mechanism improve existing treatment techniques develop novel techniques. Aneurysm-on-chip microfluidic chip that simulates typical aneurysm mechanics physiological responses. For hyperthermia hypothermia patients, body temperature can vary from...
A double plasma-mirror (DPM) system including reflective spherical optics in a telescope configuration is implemented to adapt the focal spot size of multi-Petawatt (PW) laser beam resulting intensity adjustability. The optimized minimize aberrations at plane, which ensures high-quality spot. dedicated imaging used evaluate focus quality and measure total reflectivity DPM multi-PW-level. Temporal contrast enhancement reflected additionally demonstrated, as evidenced by higher particle yield...
A double plasma-mirror (DPM) system including reflective spherical optics in a telescope configuration is implemented to adapt the focal spot size of multi-Petawatt (PW) laser beam resulting intensity adjustability. The optimized minimize aberrations at plane, which ensures high-quality spot. dedicated imaging used evaluate focus quality and measure total reflectivity DPM multi-PW-level. Temporal contrast enhancement reflected additionally demonstrated, as evidenced by higher particle yield...
Perforated plate matrix heat exchangers (MHE) are constructed of high conductivity perforated plates stacked alternately with low spacers. They being increasingly used in many cryogenic applications including Claude cycle or Reversed Brayton cryo-refrigerators and liquefiers. Design NTU (number (heat) transfer unit) MHEs requires accurate coefficient flow friction factor. Thermo-hydraulic behaviour strongly depends on the geometrical parameters. Existing correlations, however, mostly...