Xiang Sun

Dr Xiang Sun

Research associate
Office:  435 Davis Hall
Email: xs260@berkeley.edu; shyaansun@outlook.com; shyaan@lbl.gov

Xiang is a postdoc researcher at the University of California, Berkeley, who was a visiting student at the University of Cambridge and graduated from Dalian University of Technology in China. His doctoral work focused on the constitutive modeling and the coupled thermos-hydro-chemo-mechanical (THCM) finite element simulation. He proposed a thermodynamics-based constitutive model for methane hydrate-bearing soils (MHBS) and developed a coupled THCM model based on COMSOL to predict the deformation and stress distribution of MHBS layer due to gas production from hydrate. He was engaged in many key projections in China and had experiences of the earthquake-induced liquefaction analysis of high rock-fill dam. His current research interests include the THCM modeling for environmental and energy geotechnical problems, pore-pressure measurement using fiber optic sensor and the city-scale geothermal modeling based on high-performance computing.

Main publications:

  • Sun, X., Li, Y., Liu, Y. and Song, Y., 2019. The effects of compressibility of natural gas hydrate-bearing sediments on gas production using depressurization. Energy. 2019， 185， 837-846
  • Sun, X., Luo, T., Wang, L., Wang, H., Song, Y., Li, Y.. Numerical simulation of gas recovery from a low-permeability hydrate reservoir by depressurization. Applied Energy. 2019,250,7-18.
  • Sun, X., Luo, H., Luo, T., Song, Y., Li, Y., Numerical study of gas production from marine hydrate formations considering soil compression and hydrate dissociation due to depressurization. Marine and Petroleum Geology, 2019, 102, 759-774
  • Sun, X., Wang, L., Li, Y., Song, Y. Numerical modeling for the mechanical behavior of marine gas hydrate-bearing sediments during hydrate production by depressurization, Petroleum Science and Engineering,2019, 177, 971-982
  • Sun, X., Luo, H., Soga, K., A coupled thermal–hydraulic–mechanical–chemical (THMC) model for methane hydrate bearing sediments using COMSOL Multiphysics. Journal of Zhejiang University-SCIENCE A, 2018, 19(8), 600-623.
  • Sun X., Guo X., Shao L., Tang H., A thermodynamics-based critical state constitutive model for methane hydrate bearing sediment. Journal of Natural Gas Science and Engineering, 2015 , 27: 1024-1034.
  • Sun, X., Guo, X., Shao, L., Li, Y., Drucker-Prager elasto-plastic constitutive model for methane hydrate-bearing sediment. Transactions of Tianjin University, 2016, 22(5):441-450.
  • Sun, X., Guo, X., Shao, L., A return-mapping algorithm and implementation of thermodynamics-based critical state model. Rock and Soil Mechanics, 2015, 36 Supp.1
  • Li, Y., Luo, T., Sun, X., Liu, W., Li, Q., Li, Y., Song, Y., Strength Behaviors of Remolded Hydrate-Bearing Marine Sediments in Different Drilling Depths of the South China Sea. Energies, 2019, 12(2), 253.
  • Li, Y., Wu, P., Sun, X., Liu, W., Song, Y., Zhao, J., Creep Behaviors of Methane Hydrate-Bearing Frozen Sediments. Energies, 2019, 12(2), 251.
  • Duan, X., Zeng, L. and Sun, X., Generalized stress framework for unsaturated soil: demonstration and discussion. Acta Geotechnica, 2018. 1-23.
  • Wu, Z., Li, Y., Sun, X., Wu, P., Zheng, J., Experimental study on the effect of methane hydrate decomposition on gas phase permeability of clayey sediments. Applied Energy, 2018, 230, 1304-1310.
  • Luo, T., Li, Y., Sun, X., Shen, S., Wu, P., Effect of sediment particle size on the mechanical properties of CH4 hydrate-bearing sediments. Journal of Petroleum Science and Engineering, 2018, 171, 302-314.
  • Wu, Z., Li, Y., Sun, X., Li, M., Jia, R., Experimental study on the gas phase permeability of montmorillonite sediments in the presence of hydrates. Marine and Petroleum Geology, 2018, 91, 373-380.
  • Luo, T., Li, Y., Liu, W., Sun, X., Shen, S., Experimental Study on the Mechanical Properties of CH4 and CO2 Hydrate Remodeling Cores in Qilian Mountain. Energies, 2017, 10(12), 2078.
  • Shao, L., Wen, T., Guo, X., Sun, X., A method for directly measuring the hydraulic conductivity of unsaturated soil. Geotechnical Testing Journal, 2017, 40(6), 907-916.
  • Guo, X., Sun, X., Shao, L., Current Situation of Constitutive Model for Soils Based on Thermodynamics Approach, Constitutive Modeling of Geomaterials, 2013, pp 547-552