THERMAL SCIENCE

International Scientific Journal

VARIATIONAL PRINCIPLE FOR NON-LINEAR FRACTIONAL WAVE EQUATION IN A FRACTAL SPACE

ABSTRACT
The fractal derivative is adopted to describe the non-linear fractional wave equation in a fractal space. A variational principle is successfully established by the semi-inverse method. The two-scale method and He’s exp-function are used to solve the equation, and a good result is obtained.
KEYWORDS
PAPER SUBMITTED: 2020-03-01
PAPER REVISED: 2020-06-17
PAPER ACCEPTED: 2020-06-18
PUBLISHED ONLINE: 2021-01-31
DOI REFERENCE: https://doi.org/10.2298/TSCI200301018Y
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE No. 2, PAGES [1243 - 1247]
REFERENCES
[1] He, J. H., Generalized Equilibrium Equations for Shell Derived from a Generalized Variational Principle, Applied Mathematics Letters, 64 (2017), Feb., pp. 94-100
[2] He, J. H., An Alternative Approach to Establishment of a Variational Principle for the Torsional Problem of Piezoelastic Beams, Applied Mathematics Letters, 52 (2016), Feb., pp. 1-3
[3] He, J. H., Generalized Variational Principles for Buckling Analysis of Circular Cylinders, Acta Mechanica, 231 (2020), Dec., pp. 899-906
[4] He, J. H., The Simpler, The Better: Analytical Methods for Non-Linear Oscillators and Fractional Oscillators, Journal of Low Frequency Noise Vibration and Active Control, 38 (2019), 3-4, pp.1252-1260
[5] He, J. H., Variational Principle and Periodic Solution of the Kundu-Mukherjee-Naskar Equation, Results in Physics, 17 (2020), June, 103031
[6] Wang, K. L., He, C. H., A Remark on Wang's Fractal Variational Principle, Fractals, 29 (2019), 8, 1950134
[7] He, J. H., A Fractal Variational Theory for 1-D Compressible Flow in a Microgravity Space, Fractals, 28 (2020), 2, 2050024
[8] Shen, Y., He, J. H., Variational Principle for a Generalized KdV-Equation in a Fractal Space, Fractals, 20 (2020), 4, 2050069
[9] He, J. H., A Short Review on Analytical Methods for to a Fully Fourth Order Non-Linear Integral Boundary Value Problem with Fractal Derivatives, International Journal of Numerical Methods for Heat and Fluid-Flow, 30 (2020), 11, pp. 4933-4934
[10] He, J. H., A Fractal Variational Theory for 1-D Compressible Flow in a Microgravity Space, Fractals, 28 (2020), 2, 2050024
[11] He, J. H., Fractal Calculus and Its Geometrical Explanation. Results in Physics, 10 (2018), Sept., pp. 272-276
[12] Li, X. J., et al., A Fractal Two-Phase Flow Model for the Fiber Motion in a Polymer Filling Process, Fractals, 28 (2020), 5, 2050093
[13] Wang, Y., et al., A Fractal Derivative Model for Snow's Thermal Insulation Property, Thermal Science, 23 (2019), 4, pp. 2351-2354
[14] Liu, H. Y., et al., A Fractal Rate Model for Adsorption Kinetics at Solid/Solution Interface, Thermal Science, 23 (2019), 4, pp. 2477-2480
[15] He, C. H., et al., Taylor Series Solution for Fractal Bratu-Type Equation Arising in Electrospinning Process, Fractals, 28, (2020), 1, 2050011
[16] Zhang, J. J., et al., Some Analytical Methods for Singular Boundary Value Problem in a Fractal Space, Appl. Comput. Math., 18 (2019), 3, pp. 225-235
[17] Wang, K. L., et al., Physical Insight of Local Fractional Calculus and Its Application Fractional Kdv-Burgers-Kuramoto Equation, Fractals, 27 (2019), 7, 1950122
[18] Wang, K. L., Wang, K. J., A Modification of the Reduced Differential Transform Method for Fractional Calculus, Thermal Science, 22 (2018), 4, pp. 1871-1875
[19] Wang, K. L, Yao, S. W., Numerical Method for Fractional Zakharov-Kuznetsov Equations with He's Fractional Derivative, Thermal Science, 23 (2019), 4, pp. 2163-2170
[20] Bekir, A., Boz, A., Exact Solutions for a Class of Non-Linear Partial Differential Equations Using Exp-Function Method, Int. J. Non-Linear Sci. Num., 8 (2007), 4, pp. 505-512
[21] He, J. H., Ain, Q. T., New Promises and Future Challenges of Fractal Calculus: From Two-Scale Thermodynamics to Fractal Variational Principle, Thermal Science, 24 (2020), 2A, pp. 659-681
[22] He, J. H., Ji, F. Y., Two-Scale Mathematics and Fractional Calculus for Thermodynamics, Thermal Science, 23 (2019), 4, pp. 2131-2133
[23] Ain, Q. T., He, J. H., On Two-Scale Dimension and Its Applications, Thermal Science, 23 (2019), 3B, pp. 1707-1712
[24] He, J. H., Thermal Science for the Real World: Reality and Challenge, Thermal Science, 24 (2020), 4, pp. 2289-2294
[25] He, J. H., Exp-Function Method for Fractional Differential Equations, International Journal of Non-Linear Sciences and Numerical Simulation, 14 (2013), 6, pp. 363-366
[26] Ji, F. Y., et al., A Fractal Boussinesq Equation for Non-Linear Transverse Vibration of a Nanofiber-Reinforced Concrete Pillar, Applied Mathematical Modelling, 82 (2020), June, pp. 437-448
[27] He, J. H., et al., Difference Equation vs. Differential Equation on Different Scales, International Journal of Numerical Methods for Heat and Fluid-Flow, On-line first, <a href="https://doi.org/101108/HFF-03-2020-0178">doi.org/101108/HFF-03-2020-0178</a>, 2020
[28] Zhang, S., et al., Simplest Exp-Function Method for Exact Solutions of Mikhauilov-Novikov-Wang Equation, Thermal Science, 23 (2019), 4, pp. 2381-2388
[29] He, J. H., Asymptotic Methods for Solitary Solutions and Compactons, Abstr. Appl. Anal., 2012 (2012), ID916793
[30] He, J. H., Wu, X. H., Exp-Function Method for Non-Linear Wave Equations, Chaos Soliton. Fract., 30 (2006), 3, pp. 700-708
[31] Wu, X. H., He, J. H., Solitary Solutions, Periodic Solutions and Compacton-Like Solutions Using the Exp-Function Method, Comput. Math. Application, 54 (2007), 7-8, pp. 966-986
[32] Wang, K. L., et. al., A Fractal Variational Principle for the Telegraph Equation with Fractal Derivatives, Fractals, 28 (2020), 4, 2050058
[33] Wang, K. L., He's Frequency Formulation for Fractal Nonlinear Oscillator Arising in a Microgravity Space, Numerical Methods for Partial Differential Equations, On-line first, <a href="https://doi.org/10.1002/num.">doi.org/10.1002/num.</a> 22584, 2020
[34] Wang, K. L., A Novel Approach for Fractal Burgers-BBM Equation and its Variational Principle, 2020, Fractals, On-line first, <a href="https://doi.org/10.1142/S0218348X2150059">doi.org/10.1142/S0218348X2150059</a>, 2020
[35] Wang, K. L., Effect of Fangzhu's Nanoscale Surface Morphology on Water Collection, Mathematical Method in the Applied Sciences, On-line first, <a href="https://doi.org/10.1002/mma.6569">doi.org/10.1002/mma.6569</a>, 2020
[36] Wang, K. J., Wang, K. L., Variational Principles for Fractal Whitham-Broer-Kaup Equations in Shallow Water, Fractals, On-line first, <a href="https://doi.org/10.1142/S0218348X21500286">doi.org/10.1142/S0218348X21500286</a>, 2020
[37] Wang, K. J., A New Fractional Nonlinear Singular Heat Conduction Model for the Human Head Considering the Effect of Febrifuge, Eur. Phys. J. Plus, 135 (2020), Nov., 871
[38] Wang, K. J., Variational Principle and Approximate Solution for the Generalized Burgers-Huxley Equation With Fractal Derivative, Fractals, On-line first, <a href="https://doi.org/10.1142/S0218348X21500444">doi.org/10.1142/S0218348X21500444</a>, 2020
[39] Wang, K. J, Variational Principle and Approximate Solution for the Fractal Vibration Equation in a Microgravity Space, Iranian Journal of Science and Technology, Transactions of Mechanical Engineering, On-line first, <a href="https://doi.org/10.1007/s40997-020-00414-0">doi.org/10.1007/s40997-020-00414-0</a>, 2020
[40] Wang, K. J. , On a High-Pass Filter Described by Local Fractional Derivative, Fractals, 28 (2020), 3, 2050031

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