MNE MS Thesis Defense / MNE Seminar by Mr. Alan Andonian
When: Wednesday,
January 18, 2023
11:30 AM
-
1:30 PM
Where: Textiles Building 105
Description: Mechanical Engineering MS Thesis Defense / Mechanical Engineering Seminar by Mr. Alan Andonian
DATE:
January 18, 2023
TIME:
11:30 a.m. - 1:30 p.m.
LOCATION:
Textile 105 (CSCDR main room)
TITLE:
Vortex Shedding in Two-Dimensional Flow Around a Two-Cylinder Configuration
ABSTRACT:
This research is motivated by a larger project whose goals are to acoustically measure rain by evaluating acoustic signals from rain drops obtained by attaching hydrophones to a mooring. Since the flow past the mooring and hydrophone setup will cause vibrations, it is important to know the flow induced vibration characteristics of such a system, so that it can be determined whether the fluid flow will cause an interference with the acoustic measurements. This thesis idealizes the mooring and hydrophone system as a two-dimensional flow past a two-cylinder system. We first examine the classic problem of the Flow Past a single Cylinder (FPC) for a range of freestream velocities characterized by laminar and turbulent Reynolds numbers and compare our numerical results for the single cylinder with previous literature. For a two-cylinder system, the diameter ratio, separation length, the angle between the orientation of the cylinders, and the laminar and turbulent flow, characterized by the Reynolds number are important parameters. We find the largest dominant frequency for this system and compare it with the acoustic frequencies of interest for rainfall (1kHz to 30kHz). Our numerical results explore the vortex shedding frequencies for a range of each of the above parameters, without considering the flow-structure interaction. Our results show that the vortex induced vibrations have a much smaller frequency than the acoustic rainfall frequencies of interest and therefore will not impact the quantification of rainfall.
ADVISOR:
-Dr. Amit Tandon, Professor of Mechanical Engineering, UMassD
COMMITTEE MEMBERS:
-Dr. Banafsheh Seyedaghazadeh, Associate Professor of Mechanical Engineering, UMassD
-Dr. Christian Buckingham, Assistant Research Professor of Estuarine & Ocean Sciences, UMassD
-Dr. John Buck, Chancellor Professor of Electrical/Computer Engineering, UMassD
Open to the public.
MNE students taking MNE-500 are REQUIRED to attend!
All other MNE students are encouraged to attend. EAS students are also encouraged to attend.
For more information, please contact Dr. Amit Tandon (atandon@umassd.edu).
DATE:
January 18, 2023
TIME:
11:30 a.m. - 1:30 p.m.
LOCATION:
Textile 105 (CSCDR main room)
TITLE:
Vortex Shedding in Two-Dimensional Flow Around a Two-Cylinder Configuration
ABSTRACT:
This research is motivated by a larger project whose goals are to acoustically measure rain by evaluating acoustic signals from rain drops obtained by attaching hydrophones to a mooring. Since the flow past the mooring and hydrophone setup will cause vibrations, it is important to know the flow induced vibration characteristics of such a system, so that it can be determined whether the fluid flow will cause an interference with the acoustic measurements. This thesis idealizes the mooring and hydrophone system as a two-dimensional flow past a two-cylinder system. We first examine the classic problem of the Flow Past a single Cylinder (FPC) for a range of freestream velocities characterized by laminar and turbulent Reynolds numbers and compare our numerical results for the single cylinder with previous literature. For a two-cylinder system, the diameter ratio, separation length, the angle between the orientation of the cylinders, and the laminar and turbulent flow, characterized by the Reynolds number are important parameters. We find the largest dominant frequency for this system and compare it with the acoustic frequencies of interest for rainfall (1kHz to 30kHz). Our numerical results explore the vortex shedding frequencies for a range of each of the above parameters, without considering the flow-structure interaction. Our results show that the vortex induced vibrations have a much smaller frequency than the acoustic rainfall frequencies of interest and therefore will not impact the quantification of rainfall.
ADVISOR:
-Dr. Amit Tandon, Professor of Mechanical Engineering, UMassD
COMMITTEE MEMBERS:
-Dr. Banafsheh Seyedaghazadeh, Associate Professor of Mechanical Engineering, UMassD
-Dr. Christian Buckingham, Assistant Research Professor of Estuarine & Ocean Sciences, UMassD
-Dr. John Buck, Chancellor Professor of Electrical/Computer Engineering, UMassD
Open to the public.
MNE students taking MNE-500 are REQUIRED to attend!
All other MNE students are encouraged to attend. EAS students are also encouraged to attend.
For more information, please contact Dr. Amit Tandon (atandon@umassd.edu).
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