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RISThe Role of Frequency and Phase Difference Between the Flow and the Actuation Signal of a Tangential Synthetic Jet on Dynamic Stall Flow Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, we have studied the active flow control (AFC) of a pitching airfoil by means of a tangential synthetic jet actuator (SJA) using computational fluid dynamics. The airfoil was NACA0012 which pitched about its ...
Active Flow Control of Dynamic Stall by Means of Continuous Jet Flow at Reynolds Number of 1 × 106
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We have studied the influence of a tangential blowing jet in dynamic stall of a NACA0012 airfoil at Reynolds number of 1 × 106, for active flow control (AFC) purposes. The airfoil was oscillating between angles of attack ...
Modeling and Analysis of Automatic Transmission Engagement Dynamics-Nonlinear Case Including Validation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A typical control-oriented automatic transmission model does not include some mostly nonlinear effects such as transmission component friction and backlash, Stribeck clutch friction, clutch drag, ...
Developing a Virtual Laboratory for Construction Bidding Environment Using Agent-Based Modeling
Publisher: American Society of Civil Engineers
Abstract: The competitive construction bidding process is a highly unstructured decision-making problem where contractors have to take several factors into consideration, weigh their relative importance, and consequently make bidding ...
Least-Squares Variance Component Estimation Applied to GPS Geometry-Based Observation Model
Publisher: American Society of Civil Engineers
Abstract: To achieve the best linear unbiased estimation of unknown parameters in geodetic data processing a realistic stochastic model for observables is required. This work is a follow-up to work carried out recently in which the ...
On the Covariance Matrix of Weighted Total Least-Squares Estimates
Publisher: American Society of Civil Engineers
Abstract: Three strategies are employed to estimate the covariance matrix of the unknown parameters in an error-in-variable model. The first strategy simply computes the inverse of the normal matrix of the observation equations, in ...
Cooperative Game Theoretic Framework for Joint Resource Management in Construction
Publisher: American Society of Civil Engineers
Abstract: Subcontractors have a significant role in the construction industry. Through involvement at different levels, subcontractors may undertake up to 90% of the total value of large construction projects. Due to the lack of ...
A Geometrical Approach to Multipath Localization and Mitigation for Static Undifferenced GPS Data
Publisher: ASCE
Abstract: Multipath is a limiting factor for accurate positioning by global navigation satellite system (GNSS). Different hardware and computational techniques have been proposed for its mitigation. Here a geometrical approach for ...
Modeling and Analysis of Automatic Transmission Engagement Dynamics-Linear Case
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A control-oriented model of a typical four-speed automatic transmission is developed by using the bond graph modeling method. The planetary gear set model utilizes the Karnopp friction model for ...
Modeling and Simulation of the Transient Behavior of an Industrial Power Plant Gas Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study deals with modeling and simulation of the transient behavior of an Industrial Power Plant Gas Turbine (IPGT). The data used for model setup and validation were taken experimentally during the startup procedure ...