Search results

  • CSV Spreadsheet
  • RSS Feed
(1 - 6 of 6)
A Cut-Cell Based Ghost Fluid Method for Multi-Component Compressible Flows
Title
A Cut-Cell Based Ghost Fluid Method for Multi-Component Compressible Flows
Author
Liu, Chen
Date Created
2020
Subjects--Topical
Fluid mechanics
Description
Multi-material compressible flows are observed in several applications of practical relevance including combustion, cavitation and shock lithotripsy. To solve such flows numerically with improved efficiency and accuracy, the use of the Ghost Fluid...
A NUMERICAL STUDY OF INTERFACIAL INSTABILITIES IN SHOCKED MATERIALS WITH SURFACE TENSION
Title
A NUMERICAL STUDY OF INTERFACIAL INSTABILITIES IN SHOCKED MATERIALS WITH SURFACE TENSION
Author
Bigdelou, Pedram
Date Created
2020
Subjects--Topical
Fluid mechanics, Physics
Description
Shock-driven multi-material flows occur in several applications including shock wave lithotripsy, underwater explosions, droplet combustion, propeller cavitation and ejection of material from surfaces subject to blast loading. Such flows are highl...
ABSOLUTE DISTANCE (THICKNESS) METROLOGY USING WAVELENGTH SCANNING INTERFEROMETRY
Title
ABSOLUTE DISTANCE (THICKNESS) METROLOGY USING WAVELENGTH SCANNING INTERFEROMETRY
Author
Suratkar, Amit
Date Created
2009
Subjects--Topical
Optics, Optical engineering, Metrology
Description
Wavelength scanning interferometry offers a new dimension in precision metrology by measuring the cavity length (thickness), the cavity length variation over the cavity area (flatness), and the optical homogeneity within a transparent cavity; with...
From Nonradiating Sources to Directionally Invisible Objects
Title
From Nonradiating Sources to Directionally Invisible Objects
Author
Hurwitz, Elisa
Date Created
2017
Subjects--Topical
Optics, Physics
Description
The goal of this dissertation is to extend the understanding of invisible objects, in particular nonradiating sources and directional nonscattering scatterers. First, variations of null-field nonradiating sources are derived from Maxwell's equatio...
HYDRODYNAMIC SIMULATIONS OF EJECTA PRODUCTION FROM SHOCKED METALLIC SURFACES
Title
HYDRODYNAMIC SIMULATIONS OF EJECTA PRODUCTION FROM SHOCKED METALLIC SURFACES
Author
Karkhanis, Varad
Date Created
2017
Subjects--Topical
Mechanical engineering, Mechanics, Aerospace engineering
Description
The phenomenon of mass ejection into vacuum from a shocked metallic free surfaces can have a deleterious effect on the implosion phase of the Inertial Confinement Fusion (ICF) process. Often, the ejecta take the form of a cloud of particles that a...
Minimizing Task-Specific Uncertainty in CMM-Based Freeform Optics Metrology
Title
Minimizing Task-Specific Uncertainty in CMM-Based Freeform Optics Metrology
Author
Uwakwe, Michael
Date Created
2018
Subjects--Topical
Mechanical engineering, Optics, Metrology
Description
Measurements of surface form involve a comparison between the form of the test surface and a reference. In coordinate measuring machine (CMM) measurements, this reference is the machine geometry. The measurement results typically show a height map...