Dr. Olimpiu-Flavius **Pătrulescu**

- fpatrulescu[at]ictp.acad.ro

e-mail: fpatrulescu[at]ictp.acad.ro; flaviusolimpiu[at]yahoo.com

### Academic degree:

Ph.D. in Mathematics (2012)

### Current position:

Researcher at *Tiberiu Popoviciu Institute of Numerical Analysis*

### Current research domains:

- Numerical Analysis
- Contact Mechanics

**Personal Data**

Date and place of birth | 11.02.1986, Horezu, Vâlcea |

**Education background**

2009-2012 | Ph.D. student at Faculty of Mathematics and Computer Science, “Babeş-Bolyai” University, Cluj-Napoca (Romania) scientific advisor Prof. Octavian Agratini. Co-tutelle at “University of Perpignan Via Domitia”, Perpignan (France) scientific advisor Prof. Mircea Sofonea. |

2008-2009 | Master studies Master studies in Applied Mathematics at Faculty of Mathematics and Computer Science, University “Babeş-Bolyai” |

2004-2008 | Faculty of Mathematics and Computer Science, “Babeş-Bolyai” University |

2000-2004 | “Tudor Vladimirescu” High-School, Tg-Jiu |

**Working Experiance**

2014-present | Scientific Researcher III at “Tiberiu Popoviciu” Institute of Numerical Analysis, Cluj-Napoca, Romanian Academy. |

2014-2015 | Postdoctoral scholarship, Faculty of Mathematics and Computer Science, Babeș-Bolyai University, Project POSDRU/159/1.5/S/132400 |

2011-2014 | Researcher at “Tiberiu Popoviciu” Institute of Numerical Analysis, Cluj-Napoca, Romanian Academy. |

2013 | Postdoctoral research at “Clément Ader” Institute, site IUT Tarbes, project AMRIA, ANR-11-PDOC-0013 |

2009-2011 | Research Assistant at “Tiberiu Popoviciu” Institute of Numerical Analysis, Cluj-Napoca, Romanian Academy. |

2008 | High School Teacher |

**Grants**

- PN-II-RU-TE-2011-3-0013 “Transport Phenomena in Nanofluids and Nanofluids Saturated Porous Media” (Participant)

**Teaching Experience**

2009-2011 | Laboratories taught at the “Babeş-Bolyai” University, Cluj-Napoca (numerical analysis, probability, statistics) |

2017-2018 | Laboratories taught at the “Babeş-Bolyai” University, Cluj-Napoca (probability, statistics) |

**Selected Talks at Meetings and Symposia**

- Conjugate heat transfer in a vertical channel filled with a nanofluid adjacent to a heat generating solid domain, Simpozion “Metode numerice si de aproximare”, Zilele Academice Clujene, Romanian Academy, Cluj-Napoca, June 3-4, 2010.
- Steffensen type methods for approximating solutions of differential equations, International Conference “Numerical Analysis and Approximation Theory”, Cluj-Napoca, September 23-26, 2010.
- Modelling and analysis of history-dependent contact problems, XX French-Polish Seminar of Mechanics, Warsaw, 19-23 May, 2012 (+M. Sofonea, M. Barboteu, A. Ramadan).
- A one dimensional contact problem with normal compliance and memory term, XX French-Polish Seminar of Mechanics, Warsaw, 19-23 May, 2012 (Poster Session).
- On the behavior of a the solution to a contact problem with memory term, International Conference on Fixed Point Theory and its Applications, Cluj-Napoca, July 9-15, 2012 (+M. Barboteu, A. Ramadan).
- Analysis of a viscoplastic frictionless contact problem, XI-eme Colloque Franco-Roumain de Mathémtiques Appliqués, Bucharest, August 23-30, 2012 (+A. Farcaş).
- Penalization method of contact problems with unilateral constraints, 21th French-Polish Seminar of Mechanics , Perpignan, June 13-15, 2013.
- Toward shape optimization using PGD with geometrical parameters in a isogeometrical framework, 2nd International Workshop Reduced Basis, POD and PGD model, Blois Castle, November 3-6, 2013 (Poster Session) (+E. DeLuycker, A. Ammar, A. Huerta, F. Chinesta).
- Variational inequalities in contact mechanics: analysis, penalization, Academics Days of Cluj-Napoca, Romanian Academy, Cluj-Napoca, June 5, 2014.
- A viscoelastic contact problem with adhesion and surface memory effects, 12e Colloque Franco-Roumain de Mathémtiques Appliqués, Lyon, August 25-30, 2014.
- Convergence result for a variational inequality, 3rd International Conference on Numerical Analysis and Approximation Theory, Cluj-Napoca, September 17-20, 2014 (+A. Farcaş).
- Penalization methods for a variational problem in contact mechanics, Academics Days of Cluj-Napoca, Romanian Academy, Cluj-Napoca, May 20, 2015.
- A mixed variational formulation of a contact problem with adhesion, International Workshop Perpignan’s Days on Applied Mathematics, Perpignan, June 2015.
- A fixed point method in viscoplasticity and applications, International Conference on Nonlinear Operators, Differential Equations and Applications, Cluj-Napoca, July 14-17, 2015.
- New models in Contact Mechanics: weak solvability, numerical analysis, Academics Days of Cluj-Napoca, Romanian Academy, Cluj-Napoca, May 18, 2016.
- A contact problem with wear and normal compliance, Emerging Trends in Applied Mathematics and Mechanics, Perpignan, May 30-June 03, 2016.
- A regularization method for a viscoelastic contact problem, XIIIème Colloque Franco-Roumain de Mathématiques Appliquées, Iasi, August 25-29, 2016.
- History-dependent contact problems: numerical approximation using penalization and regularization methods, Workshop Applied Mathematics Methods and Modelling, Craiova, May 7-8, 2017.
- Penalization and regularization methods for history-dependent variational inequalities, Mathematical Analysis with Applications in Mechanics, Perpignan, September 6-8, 2017.
- Analysis of a rate-and-state friction problem with viscoelastic materials, Emerging Trends in Applied Mathematics and Mechanics 2018, Krakow, June 18 – 22, 2018
- F. Pătrulescu, Numerical solutions (finite element method, finite difference) for a flow problem in aquifers, Numerical Analysis, Approximation and Modeling, Academic Days, Cluj-Napoca, April 16 2019 (+C.D. Alecsa, N. Suciu)
- F. Pătrulescu, Transfer Phenomena in Non-Darcy Bidisperse Porous Media, 15th International Conference on FLUID MECHANICS (FLUIDS ’19) Athens, Greece, December 8-10 2019 (+T. Grosan, I. Pop)

**Languages**

English, French

- F. Pătrulescu, T. Groşan, I. Pop,
*Natural convection from a vertical plate embedded in a non-Darcy bidisperse porous medium*, ASME-Journal of Heat Transfer 142(1): 012504, HT-19-1097 (2020), (11 pages), (ISI journal). - M. Sofonea, F. Pătrulescu, A. Ramadan,
*A mixed variational formulation of a contact problem with wear*, Acta Appl. Math., vol. 153 (2018), pp. 125-146 (ISI journal). - F. Pătrulescu,
*A regularization method for a viscoelastic contact problem*, Math. Mech. Solids, vol. 23, no. 2 (2018), pp. 181-194 (ISI journal). - F. Pătrulescu,
*A mixed variational formulation of a contact problem with adhesion*, Appl. Anal., vol. 97, no. 8(2018), pp. 1246-1260 (ISI journal). - F. Patrulescu, M. Sofonea,
*Analysis of a rate-and-state friction problem with viscoelastic materials*, Electron. J. Differential Equations, vol. 2017 (2017), no. 299, pp. 1-17 (ISI journal). - M. Sofonea, F. Pătrulescu, Y. Souleiman,
*Analysis of a contact problem with wear and unilateral constraint*, Appl. Anal., vol. 95 no. 11 (2016), pp. 2590-2607 (ISI journal). - F. Pătrulescu, T. Groşan,
*Conjugate free convection in a vertical channel filled with nanofluid*, Stud. Univ. Babeș-Bolyai Math. vol. 60 no. 4 (2015), pp. 611–621. - F. Pătrulescu, A. Ramadan,
*Convergence results for contact problems with memory term*, Math. Rep., vol. 17 (67), no. 1 (2015), pp. 24-41 (ISI journal). - M. Sofonea, F. Pătrulescu,
*A viscoelastic contact problem with adhesion and surface memory effects*, Math. Model. Anal., vol. 19, no. 5 (2014), pp. 607-626 (ISI journal). - M. Sofonea, F. Pătrulescu,
*Penalization of history-dependent variational inequalities*, European J. Appl. Math., vol. 25, no. 2 (2014), pp. 155-176 (ISI journal). - F. Pătrulescu, T. Groşan, I. Pop,
*Mixed convection boundary layer flow from a vertical truncated cone in a nanofluid*, Int. J. Num. Meth. Heat Fluid Flow, vol. 24, no. 5 (2014), pp. 1175-1190 (ISI journal). - M. Sofonea, F. Pătrulescu, A. Farcaş,
*A viscoplastic contact problem with normal compliance, unilateral constraint and memory term*, Appl. Math. Opt., vol. 62 (2014), pp. 175-198 (ISI journal). - M. Barboteu, F. Pătrulescu, A. Ramadan, M. Sofonea,
*History-dependent contact models for viscoplastic materials*, IMA J. Appl. Math., 79 (2014) no. 6, pp. 1180-1200 (ISI journal). - M. Sofonea, F. Pătrulescu,
*Analysis of a history-dependent frictionless contact problem*, Math. Mech. Solids, 18 (2013) no. 4, pp. 409-430 (ISI journal). - M. Barboteu, F. Pătrulescu, A. Ramadan, M. Sofonea,
*On the behaviour of the solution to a viscoplastic contact problem*, in*Advances in Mathematics*, eds. L. Beznea, V. Brinzănescu, M. Iosifescu, G. Marinoschi, R. Purice, D. Timotin, pp. 75-88, The Publishing House of the Romanian Academy, 2013. - F. Pătrulescu, A. Farcaş, A Ramadan,
*A penalized viscoplastic contact problem with unilateral constraints*, Annals of the University of Bucharest – mathematical series, vol. 4 (LXII), no. 1 (2013), pp. 213-227. - M. Barboteu, A. Ramadan, M. Sofonea, F. Pătrulescu,
*An elastic contact problem with normal compliance and memory term*, Machine Dynamics Research, vol. 36, no. 1 (2012), pp. 15-25. - F. Pătrulescu,
*A numerical method for the solution of an autonomous initial value problem*, Carpathian J. Math. vol. 28 (2012), pp. 289-296 (ISI journal). - F. Pătrulescu,
*A class of numerical methods for autonomous initial value problems*, Rev. Anal. Numer. Theor. Approx., vol. 41, no. 1 (2012), pp. 82-92 - A. Farcaş, F. Pătrulescu, M. Sofonea,
*A history-dependent contact problem with unilateral constraint*, Ann. Acad. Rom. Sci. Ser. Math. Appl., vol 4, no. 1 (2012), pp. 90-96. - F. Pătrulescu,
*Steffensen type methods for approximating solutions of differential equations*, Studia Universitatis Babeş-Bolyai, seria Mathematica, vol. 56, no. 2 (2011), pp. 505-515. - F. Pătrulescu, T. Groşan, A.V. Lar,
*Mixed convection in a vertical channel subject to Robin boundary condition*, Studia Universitatis Babeş-Bolyai, seria Mathematica, vol. 55, no. 2 (2010), pp. 167-176 - F. Pătrulescu, T. Groşan,
*Conjugate heat transfer of a nanofluid in a vertical channel adjacent to a heat generating solid domain*, Rev. Anal. Numer. Theor. Approx., vol. 39, no. 2 (2010), pp. 141-149.