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Mechanical and Aerospace Engineering

D-Index
37
Citations
6316
World Ranking
2361
National Ranking
851

Overview

Dara W. Childs is affiliated with Texas A&M University in the United States. Their research expertise lies primarily within the broad field of engineering, with a focus on subfields such as mechanical engineering, aerospace engineering, computational mechanics, mechanics of materials, and ocean engineering.

The scientist's work concentrates on several main topics, including:

  • Tribology and lubrication engineering
  • Hydraulic and pneumatic systems
  • Turbomachinery performance and optimization
  • Lubricants and their additives
  • Refrigeration and air conditioning technologies
  • Combustion and flame dynamics
  • Gear and bearing dynamics analysis

Dara W. Childs has published extensively in notable venues, predominantly in the Journal of Engineering for Gas Turbines and Power, which accounts for a significant portion of their publication record. The Journal of Tribology also features among their frequent publication venues.

Some recent papers authored by or associated with Dara W. Childs include:

  • Effects of Clearance on the Performance of a Labyrinth Seal Under Wet-Gas Conditions, 2020, Journal of Engineering for Gas Turbines and Power
  • Experimental Study on the Performance of a See-Through Labyrinth Seal With Two-Phase, Mainly-Liquid Mixtures, 2020, Journal of Engineering for Gas Turbines and Power
  • Test Results for the Static and Rotordynamic Characteristics of a Long (L/D = 0.75) Smooth Seal in Two-Phase (Mainly Gas) Conditions With a 62-Bar Inlet Pressure, 2021, Journal of Engineering for Gas Turbines and Power
  • Effects of Increased Tooth Clearance on the Performance of a Labyrinth Seal With Oil-Rich Bubbly Laminar Flow, 2021, Journal of Engineering for Gas Turbines and Power
  • Performance of a Long Smooth Multiphase Pump Seal in Different Flow Regimes, 2021, Journal of Engineering for Gas Turbines and Power

Collaboration appears to be an integral aspect of their work, with frequent co-authors including Min Zhang, Dung L. Tran, Hari Shresth, and Hari Shrestha. Min Zhang is noted as a collaborator in multiple publications.

Best Publications

  • Turbomachinery Rotordynamics: Phenomena, Modeling, and Analysis

    Dara W. Childs

  • A Test Apparatus and Facility to Identify the Rotordynamic Coefficients of High-Speed Hydrostatic Bearings

    Dara Childs;Keith Hale

  • Dynamic Analysis of Turbulent Annular Seals Based On Hirs’ Lubrication Equation

    D. W. Childs

  • Fractional-Frequency Rotor Motion Due to Nonsymmetric Clearance Effects

    D. W. Childs

  • Finite-Length Solutions for Rotordynamic Coefficients of Turbulent Annular Seals

    D. W. Childs

  • An Iwatsubo-Based Solution for Labyrinth Seals: Comparison to Experimental Results

    D. W. Childs;J. K. Scharrer

  • The Space Shuttle Main Engine High-Pressure Fuel Turbopump rotordynamic instability problem

    D. W. Childs

  • Rub-Induced Parametric Excitation in Rotors

    D. W. Childs

  • Rotordynamic-Coefficient and Leakage Characteristics for Hole-Pattern-Stator Annular Gas Seals—Measurements Versus Predictions

    Dara W. Childs;Jonathan Wade

  • The Acoustic Influence of Cell Depth on the Rotordynamic Characteristics of Smooth-Rotor/Honeycomb-Stator Annular Gas Seals

    G. F. Kleynhans;D. W. Childs

  • Journal bearing impedance descriptions for rotordynamic applications

    DW Childs;H Moes;van Hj Harry Leeuwen

  • Eccentricity Effects on the Rotordynamic Coefficients of Plain Annular Seals: Theory Versus Experiment

    O. R. Marquette;D. W. Childs;L. San Andres

  • Annular honeycomb seals: test results for leakage and rotordynamic coefficients. Comparisons to labyrinth and smooth configurations

    Dara W. Childs;David Elrod;Keith Hale

  • A Parameter Identification Method for the Rotordynamic Coefficients of a High Reynolds Number Hydrostatic Bearing

    C. Rouvas;D. W. Childs

  • Theory Versus Experiment for the Rotordynamic Coefficient of Labyrinth Gas Seals: Part II—A Comparison to Experiment

    D. W. Childs;J. K. Scharrer

  • Vibration characteristics of the HPOTP (High-Pressure Oxygen Turbopump) of the SSME (Space Shuttle Main Engine)

    D. W. Childs;D. S. Moyer

  • Fluid-Structure Interaction Forces at Pump-Impeller-Shroud Surfaces for Rotordynamic Calculations

    D. W. Childs

  • Angled Injection—Hydrostatic Bearings Analysis and Comparison to Test Results

    Luis San Andres;Dara Childs

  • Rotordynamic Coefficients for a Tooth-on-Stator Labyrinth Seal at 70 Bar Supply Pressures: Measurements Versus Theory and Comparisons to a Hole-Pattern Stator Seal

    Arthur Picardo;Dara W. Childs

  • Analysis and Testing for Rotordynamic Coefficients of Turbulent Annular Seals With Different, Directionally-Homogeneous Surface-Roughness Treatment for Rotor and Stator Elements

    D. W. Childs;Chang-Ho Kim

  • Prediction of Dry-Friction Whirl and Whip Between a Rotor and a Stator

    Dara W. Childs;Avijit Bhattacharya

Frequent Co-Authors

Luis San Andrés
Luis San Andrés Texas A&M University
Byron D Tapley
Byron D Tapley The University of Texas at Austin

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