Description
- Abstract:
- This thesis presents the design, construction, and initial validation of an enhanced homogeneous isotropic turbulence chamber developed as an enlarged and improved version of a previous laboratory platform. The work focuses on chamber development rather than on complete turbulence characterization. The redesigned system preserves the impeller-driven truncated-cube concept of the earlier chamber while introducing a larger geometry, revised corner drive assemblies, improved access features, updated sealing methods, and a more robust support structure. The chamber also incorporates an upgraded control architecture, including eight encoders, an Arduino GIGA controller, a PCA9685 PWM-distribution module, centralized power distribution, and PID-based motor-speed balancing. These additions were introduced to improve motor-speed synchronization across the eight-motor array and to establish a more controllable experimental platform. Initial validation focused on system-level functionality. Preliminary tests showed that the redesigned chamber could operate as an integrated electro-mechanical system and that encoder-based feedback could bring the motor speeds into a common operating range after startup. Although detailed flow characterization remains part of future work, the present thesis establishes the redesigned chamber as a more capable platform for future studies of turbulence and multiphase flow.
- Notes:
- Thesis (Sc. M.)--Brown University, 2026
Citation
Wang, Ricky,
"DESIGN AND VALIDATION OF AN ENHANCED HOMOGENEOUS ISOTROPIC TURBULENCE CHAMBER"
(2026).
Fluid, Thermal, and Chemical Processes Theses and Dissertations.
Brown Digital Repository. Brown University Library.
https://repository.library.brown.edu/studio/item/bdr:y8byre72/
Relations
Collection:
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Fluid, Thermal, and Chemical Processes Theses and Dissertations
Theses and Dissertations for the Fluid, Thermal, and Chemical Processes department....