Lecture

Data-driven Analysis of Unsteady Vortex Dominated Flows

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Description

This lecture delves into data-driven analysis and modeling of unsteady vortex dominated flows, focusing on vortex formation, trajectory, and timing. It covers the dynamics of primary and secondary vortices, stall onset prediction, dynamic stall modeling, and separation control. The instructor explores the temporal evolution of shear layer roll-up, the strength of vortices, and the timing of secondary vortex shedding. Additionally, the lecture discusses the dynamic stall response, empirical time constants, and the functional relationship for stall delay. It also touches upon the modeling of dynamic stall on Vertical Axis Wind Turbines (VAWT) and the optimization of flapping wing kinematics through parameter space exploration.

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Data analysis

Data analysis is the process of inspecting, cleansing, transforming, and modeling data with the goal of discovering useful information, informing conclusions, and supporting decision-making. Data analysis has multiple facets and approaches, encompassing diverse techniques under a variety of names, and is used in different business, science, and social science domains. In today's business world, data analysis plays a role in making decisions more scientific and helping businesses operate more effectively.

Data science

Data science is an interdisciplinary academic field that uses statistics, scientific computing, scientific methods, processes, algorithms and systems to extract or extrapolate knowledge and insights from noisy, structured, and unstructured data. Data science also integrates domain knowledge from the underlying application domain (e.g., natural sciences, information technology, and medicine). Data science is multifaceted and can be described as a science, a research paradigm, a research method, a discipline, a workflow, and a profession.

Data

In common usage and statistics, data (USˈdætə; UKˈdeɪtə) is a collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted formally. A datum is an individual value in a collection of data. Data is usually organized into structures such as tables that provide additional context and meaning, and which may themselves be used as data in larger structures.

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Insect wings are adult outgrowths of the insect exoskeleton that enable insects to fly. They are found on the second and third thoracic segments (the mesothorax and metathorax), and the two pairs are often referred to as the forewings and hindwings, respectively, though a few insects lack hindwings, even rudiments. The wings are strengthened by a number of longitudinal veins, which often have cross-connections that form closed "cells" in the membrane (extreme examples include the dragonflies and lacewings).

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