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Company Information:

Company Name:
Vigyan Inc
Address:
VA
Hampton, VA 23666-1325
Phone:
(757) 865-1400
URL:
N/A
EIN:
541108629
DUNS:
106283112
Number of Employees:
45
Woman-Owned?:
No
Minority-Owned?:
Yes
HUBZone-Owned?:
No

Award Totals:

Program/Phase Award Amount ($) Number of Awards
SBIR Phase I $1,508,069.00 26
SBIR Phase II $2,148,713.00 8

Award List:

EXCELLENT OPPORTUNITIES EXIST FOR REDUCING THE DRAG OF AIRCRAFT BY INCREASING THE EXTENT OF LAMINAR BOUNDARY-LAYER FLOW OVER THE CONFIGURATION.

Award Year / Program / Phase:
1984 / SBIR / Phase I
Award Amount:
$48,866.00
Agency:
NASA
Principal Investigator:
Cornelis p. van dam , INVESTIGATOR
Abstract:
Excellent opportunities exist for reducing the drag of aircraft by increasing the extent of laminar boundary-layer flow over the configuration. recent technological advances in airplane construction techniques and materials employing bonded and milled aluminum skins and composite materials allow for… More

CONTROL OF ROBOTS AND MANIPULATORS BASED ON INVERTIBILITY, SERVOCOMPENSATION AND UTLIMATE BOUNEDNESS

Award Year / Program / Phase:
1984 / SBIR / Phase I
Award Amount:
$48,026.00
Agency / Branch:
DOD / DARPA
Principal Investigator:
Abstract:
N/a

CONTROL OF ROBOTS AND MANIPULATORS BASED ON INVERTIBILITY, SERVOCOMPENSATION AND UTLIMATE BOUNEDNESS

Award Year / Program / Phase:
1985 / SBIR / Phase II
Award Amount:
$90,000.00
Agency / Branch:
DOD / DARPA
Principal Investigator:
Abstract:
1 for precise and fast trajectory following by the robotic systems the control system design based on single-in-put, single-output model for each joint is not adequate. we propose totake an approach for controller design based on recent results on invertibility and functional re- productibility in… More

COMPUTATION OF AERODYNAMIC CHARACTERISTICS AND NONLINEAR STABILITY DERIVATIVES OF A FIGHTER/ATTACK AIRCRAFT AT HIGH ANGLES OF ATTACK

Award Year / Program / Phase:
1985 / SBIR / Phase I
Award Amount:
$51,194.00
Agency / Branch:
DOD / USAF
Principal Investigator:
Sudhir C Mehrotra
Abstract:
N/a

LOW DENSITY FLOW EFFECTS FOR HYPERVELOCITY VEHICLES

Award Year / Program / Phase:
1986 / SBIR / Phase I
Award Amount:
$50,388.00
Agency / Branch:
DOD / USAF
Principal Investigator:
R N Gupta
Abstract:
N/a

COMPUTATION OF AERODYNAMIC CHARACTERISTICS AND NONLINEAR STABILITY DERIVATIVES OF A FIGHTER/ATTACK AIRCRAFT AT HIGH ANGLES OF ATTACK

Award Year / Program / Phase:
1987 / SBIR / Phase II
Award Amount:
$130,000.00
Agency / Branch:
DOD / USAF
Principal Investigator:
Sudhir C Mehrotra
Abstract:
Modern tactical aircraft flying at high angles of attack encounter viscous separation, vortex flows, vortex breakdown, unsteady flow situations and their effects on the lifting surfaces downstream. it is very important to analyze these flows in order to predict the stability derivatives accurately… More

ANALYSIS OF FLOWFIELDS AROUND HYPERVELOCITY VEHICLES IN LOW-TO-HIGH DENSITY FLIGHT REGIME

Award Year / Program / Phase:
1987 / SBIR / Phase I
Award Amount:
$48,854.00
Agency:
NASA
Principal Investigator:
Abstract:
The hypersonic vehicles flying at high altitudes operate in a flow regime where the noncontinuum effects near the surface and finite shock thickness due to low density make the conventional continuum techniques grossly inadequate. chemical nonequilibrium is also important under the low-density flow… More

INVESTIGATION OF WEIS-FOGH PRINCIPLE OF HIGH LIFT AS APPLIEDTO TURBOMACHINERY FLOWS

Award Year / Program / Phase:
1987 / SBIR / Phase I
Award Amount:
$48,807.00
Agency:
NASA
Principal Investigator:
Abstract:
The proposed research is directed towards a detailed analytical and numerical study of the unsteady vortex motionin the clap-fling motion, observed by weis-fogy, which couldyield lift coefficients of up to eight. the application of the clap-fling motion analogy to a compressor stage could, under… More

LOW DENSITY FLOW EFFECTS FOR HYPERVELOCITY VEHICLES

Award Year / Program / Phase:
1987 / SBIR / Phase II
Award Amount:
$110,000.00
Agency / Branch:
DOD / USAF
Principal Investigator:
R N Gupta
Abstract:
The hypersonic vehicles flying at high altitudes operate in a flow regime where the noncontinuum effects near the surface and finite shock thickness due to low-density make the conventional contimuum techniques grossly inadequate. chemical nonequilibrium is also important under the low-density flow… More

DEVELOPMENT OF A DYNAMIC CONTROLLER FOR ROBOT ARMS BASED ON THE SYMBOLIC POLYNOMIAL TECHNIQUE

Award Year / Program / Phase:
1987 / SBIR / Phase I
Award Amount:
$46,585.00
Agency / Branch:
DOD / ARMY
Principal Investigator:
Sandeep gupta
Abstract:
Development of dynamic controllers for real time control of robot arms has been difficult because of the large amount of computations required for the implementation of such algorithms. a combination of the numerical and symbolic manipulations is used by the symbolic polynomial technique to simplify… More

GENERATION OF UNSTRUCTURED GRIDS IN THREE DIMENSIONS

Award Year / Program / Phase:
1987 / SBIR / Phase I
Award Amount:
$49,986.00
Agency:
NASA
Principal Investigator:
Abstract:
N/a

GENERATION OF UNSTRUCTURED GRIDS IN THREE DIMENSIONS

Award Year / Program / Phase:
1988 / SBIR / Phase II
Award Amount:
$498,000.00
Agency:
NASA
Principal Investigator:
Abstract:
Structured grids have been used in the cfd applications for over 20 years. however, in recent years, it has become apparent that structured grids are not flexible enough for flows over very complex domains. unstructured grids are, therefore, receiving considerable attention. although, the use of the… More

LOW-SPEED VISUALIZATION STUDIES OF COUPLED AND UNCOUPLED VORTEX SYSTEMS ON CHINE-FOREBODY/DELTA WING CONFIGURATIONS TO HIGH ANGLES OF ATTACK

Award Year / Program / Phase:
1988 / SBIR / Phase I
Award Amount:
$49,962.00
Agency:
NASA
Principal Investigator:
Dr Dhanvada M Rao
Abstract:
N/a

LOW-SPEED VISUALIZATION STUDIES OF COUPLED AND UNCOUPLED VORTEX SYSTEMS ON CHINE-FOREBODY/DELTA WING CONFIGURATIONS TO HIGH ANGLES OF ATTACK

Award Year / Program / Phase:
1989 / SBIR / Phase II
Award Amount:
$497,700.00
Agency:
NASA
Principal Investigator:
Dr Dhanvada M Rao
Abstract:
Forebodies with vortex-generating side edges or chines blending into highly swept leading edges are known to stabilize the leading edge vortices through aerodynamic coupling at high angles of attack. however, in post-stall maneuvering flight chine vortex interaction with wing and vertical tails can… More

LOW-SPEED EXPERIMENTAL INVESTIGATIONS OF VORTEX CONTROL CONCEPTS ON A GENERIC CHINE FOREBODY/DELTA WING CONFIGURATION AT HIGH ANGLES ...

Award Year / Program / Phase:
1989 / SBIR / Phase I
Award Amount:
$56,855.00
Agency / Branch:
DOD / USAF
Principal Investigator:
Dr D M Rao
Abstract:
An experimental feasibility study is proposed of two separate aerodynamic concepts for direct and independent control of chine forebody vortices at high angles of attack and in sideslip: (a) longitudinally hinged chines that can be moved to variable dihedral or anhedral angle; and (b) spanwise… More

MICROCOMPUTER BASED CONTROL OF A LARGE CRYOGENIC WIND TUNNEL

Award Year / Program / Phase:
1989 / SBIR / Phase I
Award Amount:
$49,400.00
Agency:
NASA
Principal Investigator:
Sundareswara Balakrishna
Abstract:
N/a

MICROCOMPUTER BASED CONTROL OF A LARGE CRYOGENIC WIND TUNNEL

Award Year / Program / Phase:
1990 / SBIR / Phase II
Award Amount:
$448,410.00
Agency:
NASA
Principal Investigator:
Sundareswara Balakrishna
Abstract:
Proof of concept demonstration, of the 0.3 m transonic cryogenic wind tunnel in early 1970's, has paved way for large high reynolds number cryogenic tunnel like the national transonic facility (ntf) in 1984. the quality of data generated in a cryogenic tunnel is intimately related to the stability… More

PLAUSSIBILITY OF COLD FUSION IN METALIC LATTICE

Award Year / Program / Phase:
1990 / SBIR / Phase I
Award Amount:
$48,775.00
Agency / Branch:
DOD / NAVY
Principal Investigator:
Dr Ram K Tripathi
Abstract:
Cold fusion occurs when two nuclei with very small relative energy tunnel through their relative coulomb barrier to initiate a nuclear reaction. recent reports of cold-fusion between hydrogen isotopes embedded in palladium and titanium have aroused a lot of activity in this area. to acheive the rate… More

POSTPROCESSING OF CFD DATA

Award Year / Program / Phase:
1990 / SBIR / Phase I
Award Amount:
$58,659.00
Agency / Branch:
DOD / USAF
Principal Investigator:
Paresh Parikh
Abstract:
N/a

POSTPROCESSING OF CFD DATA

Award Year / Program / Phase:
1991 / SBIR / Phase II
Award Amount:
$124,643.00
Agency / Branch:
DOD / USAF
Principal Investigator:
Paresh Parikh
Abstract:
A rapid, user-friendly and interactive graphics post processor program for the analysis of cfd data is proposed. the program will be able to handle structured and/or unstructured grids of single-or multi-block format. it will be flexible enough to plot fluid dynamic data at user specified arbitrary… More

VOLUME VISUALIZATION ON MASSIVELY PARALLEL COMPUTERS

Award Year / Program / Phase:
1991 / SBIR / Phase I
Award Amount:
$49,790.00
Agency:
DOE
Principal Investigator:
Dr P Sundaram , Principal Investigator
Abstract:
This research is directed toward the volume visualization ona massively parallel computer (mpc) of the analyzed results in parallel with time-dependent analysis. in the present volume visualization technique, the volumetric data that maybe obtained from numerical or experimental studies are directly… More

PILOT WX ADVISOR

Award Year / Program / Phase:
1991 / SBIR / Phase I
Award Amount:
$50,000.00
Agency:
NASA
Principal Investigator:
Abstract:
N/a

PILOT WX ADVISOR

Award Year / Program / Phase:
1992 / SBIR / Phase II
Award Amount:
$249,960.00
Agency:
NASA
Principal Investigator:
Abstract:
The safety of flight operations of many general aviation (ga) aircraft is compromised by the lack of real-time, severe-weather information in the cockpit. this project will develop and demonstrate an automated cockpit weather-display system that will do all these things and more. in phase i, the… More

MECHANICAL AND PNEUMATIC HIGH-ALPHA VORTEX CONTROL TECHNIQUES FOR LOW OBSERVABLE FOREBODY CONFIGURATIONS

Award Year / Program / Phase:
1992 / SBIR / Phase I
Award Amount:
$57,431.00
Agency / Branch:
DOD / USAF
Principal Investigator:
Dhanvada M. Rao
Abstract:
A 'control'vortex concept for generating high-alpha yaw and pitch control on low-observables type forebodies (viz., having diamond-shpaed chined cross sections), is proposed for exploratory low-speed wind tunnel study. Two parallel approaches for realizing the control concept will be evaluated on a… More

A DISTRIBUTED INFORMATION SYSTEM ARCHITECTURE FOR PLANNING AND SCHEDULEING TOOLS

Award Year / Program / Phase:
1992 / SBIR / Phase I
Award Amount:
$50,000.00
Agency:
NASA
Principal Investigator:
Mala Mehrotra , Principal Investigator
Abstract:
N/a

ADAPTIVE RAY TRACING OF TIME-DEPENDENT FLOWS ON MASSIVELY PARALLEL COMPUTERS

Award Year / Program / Phase:
1992 / SBIR / Phase I
Award Amount:
$50,000.00
Agency:
NASA
Principal Investigator:
Dr. P Sundaram
Abstract:
N/a

Active Flow-Control Concepts for Stall Alleviation and Post-Stall Lift Improvement of Vortex Dominated Fighter Configuration

Award Year / Program / Phase:
1993 / SBIR / Phase I
Award Amount:
$60,099.00
Agency / Branch:
DOD / USAF
Principal Investigator:
Dhanvada M. Rao
Abstract:
It is proposed to experimentally explore two active separation-control concepts aimed at stall alleviation and maximum-lift improvement on generic, vortex-dominated fighter configurations. The concepts comprise a delta wing incorporating transversely-hinged apex flaps oscillating in the pitch plane,… More

Leading Edge Extension Blowing Concept for Enhanced High-Alpha and Post-Stall Aerodynamics of Highly Maneuverable Configurations

Award Year / Program / Phase:
1993 / SBIR / Phase I
Award Amount:
$50,000.00
Agency:
NASA
Principal Investigator:
D.M. Rao
Abstract:
N/a

Multidimensional Wave Models for Solution-Adaptive Grid Generation

Award Year / Program / Phase:
1993 / SBIR / Phase I
Award Amount:
$49,844.00
Agency:
NASA
Principal Investigator:
Paresh Parikh
Abstract:
N/a

Vortex Flap Improvements for Enhanced Low-Speed Aerodynamics of Supersonic-Cruise Aircraft

Award Year / Program / Phase:
1994 / SBIR / Phase I
Award Amount:
$70,000.00
Agency:
NASA
Principal Investigator:
Dhanvada M. Rao
Abstract:
Leading edge vortex flap modifications are proposed for improvedlow-speed lift and L/D characteristics of supersonic cruiseaircraft. The aim is to increase the vortex-lift potential inaddition to generating vortex thrust on highly-swept wingconfigura

A Novel Pneumatic Vortex Control Technique For Lift And Maneuverability Enhancement Of Highly-Swept Configurations

Award Year / Program / Phase:
1995 / SBIR / Phase I
Award Amount:
$69,975.00
Agency:
NASA
Principal Investigator:
Dhanvada M. Rao , Principal Vice President
Abstract:
N/a

Low-Cost Piston Engine Health Monitoring and Control System for General Aviation

Award Year / Program / Phase:
1998 / SBIR / Phase I
Award Amount:
$69,699.00
Agency:
NASA
Principal Investigator:
Abstract:
N/a

Wind Tunnel Active Vibration Reduction System (WTAVRS)

Award Year / Program / Phase:
2005 / SBIR / Phase I
Award Amount:
$99,874.00
Agency / Branch:
DOD / USAF
Principal Investigator:
Heather Houlden, Senior Research Engineer
Abstract:
During wind tunnel testing of scaled aerodynamic models, the most critical measuring device is the internal strain gage balance. Modern internal balances are intricate and precise devices, which resolve the force moment data into Cartesian components accurately. While the accuracy of the balance… More

Development of a "Digital Bridge" Thermal Anemometer for Turbulence Measurements

Award Year / Program / Phase:
2014 / SBIR / Phase I
Award Amount:
$125,000.00
Agency:
NASA
Principal Investigator:
Amber Favaregh, Senior Research Engineer (PI)
Abstract:
Thermal anemometry (a.k.a. hot-wire anemometry) has been a key experimental technique in fluid mechanics for many decades. Due to the small physical size and high frequency response of the sensors (resulting in excellent spatial and temporal resolution), the technique has been widely used for… More