Daniel White is a research engineer in the Computational Engineering Division at LLNL.  Dr. White worked in computational electromagnetics for many years, developing the EMSolve suite of computational electromagnetics codes. EMSolve included finite difference, finite element, and integral equation methods, in both the time domain and frequency domain. Dr. White then transitioned to magnetohydrodynamics and pulse power problems. Then he transitioned to topology optimization for additive manufacturing applications. Currently, Dr. White is applying machine learning methods to diverse engineering problems such as shape optimization, accelerating the simulation of structural lattices, and studying the onset of instabilities in fluids.

Outside of LLNL, Dr. White taught in the Mathematics and Computer Science Department at Cal State East Bay. Dr. White served as an Associate Editor of the SIAM Journal on Scientific Computing for four years. Before joining LLNL, Dr. White was a Senior Engineer at Hughes Electronics , where he was involved in radar signal processing, electromagnetic scattering, and antenna design.

Ph.D Computational Science, University of California, Davis

M.S. Electrical Engineering, University of California, Davis

B.S. Electrical Engineering, University of California, Davis

W. J. Schill, M. R. Armstrong, J. H. Nguyen, D. M. Sterbentz, D. A. White, L. X. Benedict, R. N. Rieben, A. Hoff, H. E. Lorenzana, J. L. Belof, B. M. La Lone, and M. D. Staska, “Suppression of Richtmyer-Meshkov Instability via Special Pairs of Shocks and Phase Transitions“, Phys. Rev. Lett. 132, 024001 – Published 9 January 2024

 

Dane M. Sterbentz, Charles F. Jekel, Daniel A. White, Robert N. Rieben, Jonathan L. Belof; Linear shaped-charge jet optimization using machine learning methods. J. Appl. Phys. 28 July 2023; 134 (4): 045102

 

D. White, J. Kudo, S. Watts, K. Swartz, D. Tortorelli, “A reduced order model approach for finite element analysis of cellular structures,” Finite Elements in Analysis and Design, v.214, 103855, 2023.

 

D. White, J. Kudo, S. Watts, K. Swartz, D. Tortorelli, “A reduced order model approach for finite element analysis of cellular structures,” Finite Elements in Analysis and Design, v.214, 103855, 2023.

 

D. Sterbentz, C. Jekel, D. White, S. Aubry, H. Lorenzana, J. Belof, “Design optimization for Richtmyer–Meshkov instability suppression at shock-compressed material interfaces,” Physics of Fluids, v. 34, 082109, 2022.

Kenneth E. Swartz, Daniel A. White, Daniel A. Tortorelli, and Kai A. James, “Topology optimization of 3D photonic crystals with complete bandgaps,” Optics Express, Vol. 29, Issue 14, pp. 22170-22191, 2021

F. Fernandez, A.T. Barker, J. Kudo, J.P. Lewicki, K. Swartz, D. A. Tortorelli, S. Watts, D. A. White, J. Wong, "Simultaneous Material, Shape and Topology Optimization," Computer Methods in Applied Mechanics and Engineering,  2020.

Ian Karlin, 74 other authors, Dan White, “Preparation and Optimization of a Diverse Workload for a Large-Scale Heterogeneous System”, Supercomputing 19

Daniel White, William Arrighi, Jun Kudoi, Seth Watts, “Multiscale topology optimization using neural network surrogate models,” Comp. Meth. Appl. Mech. Eng., v. 346, pp 1118-1135, 2019. LLNL-JRNL-760619

Seth Watts, William Arrighi, Jun Kudo, Daniel A. Tortorelli, Daniel A. White, “Simple, accurate surrogate models of the elastic response of three-dimensional open truss micro-architectures with applications to multiscale topology design,” Struct Multidisc Optim , 2019. IM 943847

Daniel White, Alexey Voronin, “A computational study of symmetry and well-posedness of structural topology optimization,” Structural and Multidisciplinary Optimization, v. 59, I. 3, pp 759-766, 2019. LLNL-JRNL-761457

Daniel White Mark Stowell, Daniel Tortorelli, “Topological optimization of structures using Fourier Representation,” Structural and Multidisciplinary Optimization, v. 58, I. 3, pp 1205-1220, 2018. LLNL-JRNL-736779

A. L. Kuhl, D. A. White, B. A. Kirkendall, “Electromagnetic waves from TNT explosions,” Journal of Electromagnetic Analysis and Applications, v. 6, pp 280-295, Sep. 2014.

M. Barham, D. J. Steigman, D. White, “Magnetoelasticity of highly deformable thin films: Theory and simulation,” Int. J. Nonlinear Mechanics, Volume 47, Issue 2, March 2012, Pages 185–196. LLNL-JRNL-485221.

M. Barham, D. White, “Finite element simulation of permanent magnetoelastic thin films,” IEEE Transactions on Magnetics,” IEEE Trans. Magnetics, v. 47, n. 5, pp.1402-1406, 2011. LLNL-POST-432576

M. Barham, D. White, D. Steigmann, “Finite element modeling of the deformation of magnetoelastic film,” J. Comp. Phys., 229, pp. 6193-6207, 2010. LLNL-JRNL-647634

D. White, “Using the Sherman-Morrison-Woodbury formula for coupling external circuits with FEM for simulation of eddy current problems,” IEEE Transactions on Magnetics, vol 45, n 10, pp. 3915 – 3918, 2009. LLNL-PROC-412721

M. Barham and D. White, “Finite Element Modeling of the Deformation of a Thin Magnetoelastic Film Compared to a Membrane Model,” IEEE Transactions on Magnetics, vol. 45, n. 10, pp. 4124 – 4127, 2009 LLNL-PROC-412042.

D. White, “Nonphysical reverse currents in transient finite element magnetics simulation,” IEEE Transactions on Magnetics, vol 45, n 4, pp. 1973 – 1989, 2008. LLNL-JRNL-404611

M. Stowell, B. Fasenfest, D. White, “Investigation of radar propagation in buildings: A 10 billion element FETD simulation,” IEEE Trans. Ant. Prop., v56, n 8, pp. 2241-2250, 2008. UCRL-JRNL-232301

R. Rieben, D. White, B. Wallin, J. Solberg, “An arbitrary Lagrangian-Eulerian discretization of MHD on 3D unstructured grids,” J. Comp. Phys. 226, pp. 534-570, 2007. UCRL-JRNL-222113

A. Fisher, G. Rodrigue, D. White, “An efficient vector finite element method for nonlinear electromagnetic modeling,” Journal of Computational Physics, Volume 225, Issue 2, 10 August 2007, Pages 1331-1346. UCRL-JRNL-222488

D. White, B. Fansefest, R. Rieben, M. Stowell, “A QR accelerated volume-to-surface boundary condition for the finite element solution of eddy current problems,” IEEE Trans. Mag. V. 43, n. 5, pp. 1920-1934, 2007. UCRL-JRNL-224344

D. White, B. Fasenfest, “Performance of low-rank QR approximation of the finite element Biot-Savart law,” IEEE Transactions on Magnetics, v. 43, n. 4, pp 1485-1488, April 2007. UCRL-JRNL-225446

D. White, R. Rieben, B. Wallin, “'Coupling Magnetic Fields and ALE Hydrodynamics for 3D Simulations of MFCG's,” Proceedings of the 2006 IEEE International Conference on Megagauss Magnetic Field Generation, Santa Fe, NM, Nov. 5-10, 2006, pp 371-376. UCRL-JRNL-225074

J. Li, G. Burke, D. White, C. Thompson, K. Webb, “Design of near-field irregular diffractive optical elements using a multi-resolution direct binary search method,” Optics  Letters, Vol. 31, Issue 14, pp. 2157-2159 2006. UCRL-JRNL-217500

D. White, J. Koning, R. Rieben, “Development and Application of Compatible Discretizations of Maxwell’s Equations,” in Compatible Discretization of Partial Differential Equations, Springer-Verlag series on Mathematics and its Applications, v.142, 2006. UCRL-BOOK-212729

P. Castillo, R. Rieben and D. White, "FEMSTER: An Object Oriented Class Library of High-Order Discrete Differential Forms,", ACM Transactions on Mathematical Software, v 31, n. 4, pp 425-457, 2006. UCRL-JC-150281

R. Rieben, D. White, “Verification of high-order mixed finite element solution of transient magnetic diffusion problems,” IEEE Trans. Magnetics, v. 42, n. 1, pp 25-39, 2006. UCRL-JRNL-212411

J. Pingenot, R. Rieben, D. White, D. Dudley, “Full wave analysis of RF signal attenuation in a lossy rough surface cave using a high order time domain vector finite element method,” J. Electromagnetic Waves and Applications, v. 20, n. 12, pp. 1695-1707,2006

A. Fisher, G. Rodrigue, D. White, “A generalized mass lumping technique for vector finite element solutions of the time dependent Maxwell equations,” IEEE Trans. Ant. Prop.,v. 53 n. 9, pp 2900-2910, 2005. UCRL-JRNL-205643

R. Rieben, G. Rodrigue, D. White, “A high order mixed finite element method for solving the time dependent Maxwell equations on unstructured grids,” Journal of Computational Physics, v. 204, n. 4, pp. 490-519, 2005. UCRL-JRNL-204305

V. Jandhyala, P. Nikitin, J. D. Rockway, J. W. Rockway, N. Champagne, R. Sharpe. D. White, C.-J. R. Shi, and D. Allstot, "Electromagnetic modeling and electromagnetic circuit co-simulation of mixed-signal systems-on-chip", pp. 3281-3284 in Proc. IEEE APS-URSI Symp., Monterey, CA, June 2004.

P. Nikitin, V. Jandhyala, D. White, N. Champagne, J. D. Rockway, C.-J. R. Shi, C. Yang, G. Ouyang, Y. Wang, R. Sharpe and J. Rockway, "Modeling and simulation of circuit-electromagnetic effects in electronic design flow," pp. 244-249 in Proc. IEEE 5th International Symp. on Quality Electronic Design (ISQED'04), San Jose. CA, March 2004.

R. Rieben, D. White, G. Rodrigue, “Improved conditioning of finite element matrices using new high order interpolatory bases,” IEEE Trans. Ant. Prop., v. 52, n. 10, pp 2675-2683, 2004. UCRL-JC-15229

R. Rieben, D. White, G. Rodrigue, “High order symplectic integration methods for finite element solutions to time dependent Maxwell’s equations,” IEEE Trans. Ant. Prop., v. 52, n. 8, pp 2190-2195, 2004. UCRL-JC-152872

P. Castillo, J. Koning, R. Rieben, D. White, “A discrete differential forms framework for computational electromagnetics,” Comp. Meth. Eng. Sci. Vol 5 No 4 pp 331 – 346, 2004. UCRL-JC-149836

D. White, M. Stowell, “Full wave simulation of electromagnetic coupling effects in RF and mixed-signal ICs using a time-domain finite-element method,” IEEE Trans. Micro. Theory Tech., Vol 52, No. 5, pp 1040 -1414, 2004. UCRL-JC-155139

D. A. White and J. Koning, “Computing solenoidal eigenmodes of the vector Helmholtz equation: A novel approach,” IEEE Transactions on Magnetics, Vol. 38, No. 5, September 2002. UCRL-JC-136971

G. Rodrigue and D. A. White, “A Vector Finite Element Time-Domain Method for Solving Maxwell's Equations on Unstructured Hexahedral Grids,” SIAM Journal on Scientific Computing, Oct 1, 2001, V23(N3):683-706. UCRL-JC-131597

G. Rodrigue, D. White, J. Koning, ”Scalable Preconditioned Conjugate Gradient Inversion of Vector Finite Element Mass Matrices,” J. Comput. Appl. Math, 123, (2000), pp. 307-321. UCRL-JC-134241

D. A. White, “Vector Finite Element Modeling of Optical Tweezers,” Computer Physics Communications, 128, 558-564, 2000. UCRL-JC-133295

D. A. White, “Numerical Modeling of Optical Gradient Traps using the Vector Finite Element Method,” Journal of Computational Physics, 159, 13-37, 2000. UCRL-JC-133021

D. A. White, “Numerical Dispersion of a Vector Finite Element Method on Distorted Hexahedral Grids,” Comm. Numer. Meth. Engng, 16, 47-55, 2000. UCRL-JC-129297

D. A. White, “Solution of Capacitance Systems using Incomplete Cholesky Fixed Point Iteration,” Comm. Numer. Meth. Engng., 15, pp. 373-380, 1999. UCRL-JC-129950

D. A. White, “Orthogonal Vector Basis Functions for Time-Domain Finite Element Solution of the Vector Wave Equation,” IEEE Trans. Magnetics, v. 35, n. 3, pp.1458-1462, 1999. UCRL-JC-129188

D. A. White and G. Rodrigue, “Improved Vector FEM Solutions of Maxwell’s Equations using grid Pre-Conditioning,” Int. J. Numer. Meth. Engng., 40, 3815-3837, 1997. UCRL-JC-122893-REV-1