Variability in additively manufactured turbine cooling features

被引:4
|
作者
Wildgoose, Alexander J. [1 ]
Thole, Karen A. [1 ]
机构
[1] Penn State Univ, University Pk, PA 16802 USA
关键词
additive manufacturing; heat transfer; turbine cooling;
D O I
10.33737/jgpps/162654
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Additive manufacturing (AM) allows for the rapid fabrication of complex components relative to conventional fabrication methods aiding in the development and testing of advanced turbine cooling methods. The repeatability of printed geometric features in the same part is required to maintain part quality, flow, and heat transfer. It is widely understood as to the impact that the additional roughness of AM provides with regards to part quality, but part variability also leads to differences in performance either locally in considering a single airfoil or globally when considering an entire stage. Previous studies have shown the importance of certain process parameters, build directions, and feature sizes on the part quality when printing a part using AM. As processes have continued to evolve, other artifacts of AM have arisen such as the location on the build plate. This article highlights the progress that has been made on printing commonly used cooling features by either considering simple straight coupons or a curved vane leading edge. Also discussed is the variability that exists and the resulting convective heat transfer and pressure losses. Results indicate that the variation of roughness between components and the part-to-part variations increased the further the component was from the laser source on the build plate. Similarly, the variation and levels in the pressure loss and heat transfer of the cooling channels also increased when samples were placed further from the laser source on the build plate.
引用
收藏
页码:3 / 18
页数:16
相关论文
共 50 条
  • [31] Cooling Performance of an Additively Manufactured Lattice Structural Conformal Cooling Channel for Hot Stamping
    Van Loi Tran
    Kim, Byeong-Cheon
    Thanh Thuong Do
    Zhang, Shengwei
    Chang, Kyoungsik
    Hong, Sung-Tae
    Auyeskhan, Ulanbek
    Choi, Jihwan
    Kim, Dong-Hyun
    INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING, 2022, 23 (12) : 1443 - 1452
  • [32] Ultrasonic evaluation of segmental variability in additively manufactured metal components
    Roy, Manish
    Walton, Kenneth
    Harley, Joel B.
    Skliar, Mikhail
    2018 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS), 2018,
  • [33] DEVELOPMENT AND MATERIAL CHARACTERIZATION OF AN ADDITIVELY MANUFACTURED NICKEL ALLOY FOR TURBINE APPLICATIONS
    Day, David
    Kawecki, Edwin
    McNally, Joshua R.
    Rosenbarger, Thomas J.
    PROCEEDINGS OF THE ASME TURBO EXPO: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, 2018, VOL 6, 2018,
  • [34] NUMERICAL INVESTIGATION OF AN IN-WALL COOLING DESIGN APPROACH FOR IMPROVED THERMAL EFFICIENCY OF ADDITIVELY MANUFACTURED GAS TURBINE RING SEGMENTS
    Wimmer, Thomas
    Mick, York
    Weigand, Bernhard
    PROCEEDINGS OF THE ASME TURBO EXPO: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, VOL 7A, 2020,
  • [35] Tomographic flow measurements over additively manufactured cooling channel roughness
    Boldt, Ryan
    Mcclain, Stephen T.
    Kunz, Robert F.
    Yang, Xiang
    EXPERIMENTS IN FLUIDS, 2024, 65 (04)
  • [36] EFFECTS OF COOLANT FEED DIRECTION ON ADDITIVELY MANUFACTURED FILM COOLING HOLES
    Stimpson, Curtis K.
    Snyder, Jacob C.
    Thole, Karen A.
    Mongillo, Dominic
    PROCEEDINGS OF THE ASME TURBO EXPO: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, 2018, VOL 5B, 2018,
  • [37] Microstructural features in additively manufactured EUROFER97 components
    Bonk, Simon
    Duerrschnabel, Michael
    Neuberger, Heiko
    Simondon, Esther
    Rieth, Michael
    FUSION ENGINEERING AND DESIGN, 2021, 173
  • [38] Cooling channel free surface optimisation for additively manufactured casting tools
    Tongyan Zeng
    Essam Abo-Serie
    Manus Henry
    James Jewkes
    The International Journal of Advanced Manufacturing Technology, 2023, 127 : 1293 - 1315
  • [39] Effects of Coolant Feed Direction on Additively Manufactured Film Cooling Holes
    Stimpson, Curtis K.
    Snyder, Jacob C.
    Thole, Karen A.
    Mongillo, Dominic
    JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME, 2018, 140 (11):
  • [40] Tomographic flow measurements over additively manufactured cooling channel roughness
    Ryan Boldt
    Stephen T. McClain
    Robert F. Kunz
    Xiang Yang
    Experiments in Fluids, 2024, 65