Essays about: "nonlinear systems"

Showing result 6 - 10 of 169 essays containing the words nonlinear systems.

  1. 6. Ocean rogue wave analysis for the development of safer navigation systems. : A Thesis submitted to the University of Gävle for the degree of Bachelor of Mathematics

    University essay from Högskolan i Gävle/Matematik

    Author : Sergio Manzetti; [2023]
    Keywords : ;

    Abstract : Rogue waves are unexpectedly high waves of 2.5X the significant wave height and which occur in nearly all phases of nature, from  oceans, to fiber-optic cables and atmospheric air-masses. In the ocean, rogue waves pose a significant danger to shipping and fishing vessels and have been found to reach 27. READ MORE

  3. 7. Convolution-compacted visiontransformers forprediction of localwall heat flux atmultiple Prandtlnumbers in turbulentchannel flow

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Yuning Wang; [2023]
    Keywords : Turbulent flow; Heat transfer; Vision transformer; Convolutional neural network; Machine learning;

    Abstract : Predicting wall heat flux accurately in wall-bounded turbulent flows is critical for a variety of engineering applications, including thermal management systems and energy-efficient designs. Traditional methods, which rely on expensive numerical simulations, are hampered by increasing complexity and extremly high computation cost. READ MORE

  4. 8. Data Assimilation for Systems with Multiple Timescales

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Dan Vicente Ihanus; [2023]
    Keywords : Mathematics; Partial Differential Equations; Numerical analysis; Data assimilation; Numerical weather prediction; Ensemble Kalman Filter;

    Abstract : This text provides an overview of problems in the field of data assimilation. We explore the possibility of recreating unknown data by continuously inserting known data into certain dynamical systems, under certain regularity assumptions. READ MORE

  5. 9. Numerical simulation of the non-linear Schrödinger equation A comparative study based on the summation-by-parts method in space and time

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Ibrohim Hamoud; [2023]
    Keywords : ;

    Abstract : In this work, we present the numerical implementation of various time marching methods based on the summation-by-parts (SBP) method for the time integration of nonlinear dispersive systems. More specifically, we consider the nonlinear Schrödinger (NLS) equation that accepts soliton or soliton-like solution as a primary case study. READ MORE

  6. 10. Comparative Study of Genetic Algorithm Optimized FO-PID and LQR Control Strategies Applied to a Piston Pump in a Volume Calibration System

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Yaman Deif; [2023]
    Keywords : FOPID; LQR; GA; Servo Piston Pump; BLDC; Control Comparison; System Modeling; Volume Measuring.; FOPID; LQR; GA; Servo Piston Pump; BLDC; Styrjämförelse; Systemmodellering; Volymmätning.;

    Abstract : One of the key responsibilities of Getinge's ventilators is to deliver accurate gas volumes to patients. To ensure this precision, specially designed rigid steel tanks are utilized to evaluate the performance and precision of the ventilators in providing exact air volume. READ MORE