Table 2. Comparison between heat... | Emerald Publishing

Table 2.

Comparison between heat transfer rate of square and annular enclosure for different thermal conditions

Ra	d	h	Nanoparticle shape	$\bar{N u}$ for uniform heating		$\bar{N u}$ for linear heating		$\bar{N u}$ for sinusoidal heating
Ra	d	h	Nanoparticle shape	Square	Annulus	Square	Annulus	Square	Annulus
10³	0.3	0.3	Spherical	6.5850331	8.6840452	2.4697965	3.5717699	1.0253931	1.1978497
	0.7	0.7		5.4124021	7.3932065	0.1665528	0.6840464	−0.8060156	−0.8510240
	0.4	0.2		6.3933114	8.4490096	2.0429081	3.0509654	1.0366892	1.1985037
	0.2	0.4		6.4145126	8.4699332	1.8297109	2.9326275	0.9167009	1.1781592
	0.2	0.2	Blade	5.4226164	7.3144455	3.9354729	6.8763990	1.7235268	3.4629886
			Brick	4.8811030	6.0213484	3.3589613	5.6603438	1.4772871	2.8447513
			Cylinder	4.1988443	5.2196701	2.4855416	4.7548948	0.5143560	1.8449354
			Platelet	4.5177621	5.4174346	2.5764136	4.9393388	0.5493479	1.9306888
10⁵	0.3	0.3	Spherical	10.8924231	13.0776185	4.3255926	6.0068852	5.1441646	5.3626164
	0.7	0.7		5.7227195	7.8802541	0.5779625	1.0902441	−0.2383840	−0.3069542
	0.4	0.2		9.7130774	12.8864425	3.7230911	5.9637697	3.9676952	5.2081197
	0.2	0.4		10.1843720	13.0783448	3.7900560	5.9619294	4.2962653	5.3501909
	0.2	0.2	Blade	7.2448242	9.5343485	5.9788348	8.6290111	4.5972134	5.9911304
			Brick	5.5370105	7.9756457	5.2099922	7.1929093	3.9933995	5.0518617
			Cylinder	4.0114265	6.2455630	4.9763937	5.7453685	2.3086142	3.2028743
			Platelet	4.7904321	6.3325629	4.9624523	5.8654660	2.1241894	3.1830767

Ra	d	h	Nanoparticle shape	$\bar{N u}$ for uniform heating		$\bar{N u}$ for linear heating		$\bar{N u}$ for sinusoidal heating
Ra	d	h	Nanoparticle shape	Square	Annulus	Square	Annulus	Square	Annulus
10³	0.3	0.3	Spherical	6.5850331	8.6840452	2.4697965	3.5717699	1.0253931	1.1978497
	0.7	0.7		5.4124021	7.3932065	0.1665528	0.6840464	−0.8060156	−0.8510240
	0.4	0.2		6.3933114	8.4490096	2.0429081	3.0509654	1.0366892	1.1985037
	0.2	0.4		6.4145126	8.4699332	1.8297109	2.9326275	0.9167009	1.1781592
	0.2	0.2	Blade	5.4226164	7.3144455	3.9354729	6.8763990	1.7235268	3.4629886
			Brick	4.8811030	6.0213484	3.3589613	5.6603438	1.4772871	2.8447513
			Cylinder	4.1988443	5.2196701	2.4855416	4.7548948	0.5143560	1.8449354
			Platelet	4.5177621	5.4174346	2.5764136	4.9393388	0.5493479	1.9306888
10⁵	0.3	0.3	Spherical	10.8924231	13.0776185	4.3255926	6.0068852	5.1441646	5.3626164
	0.7	0.7		5.7227195	7.8802541	0.5779625	1.0902441	−0.2383840	−0.3069542
	0.4	0.2		9.7130774	12.8864425	3.7230911	5.9637697	3.9676952	5.2081197
	0.2	0.4		10.1843720	13.0783448	3.7900560	5.9619294	4.2962653	5.3501909
	0.2	0.2	Blade	7.2448242	9.5343485	5.9788348	8.6290111	4.5972134	5.9911304
			Brick	5.5370105	7.9756457	5.2099922	7.1929093	3.9933995	5.0518617
			Cylinder	4.0114265	6.2455630	4.9763937	5.7453685	2.3086142	3.2028743
			Platelet	4.7904321	6.3325629	4.9624523	5.8654660	2.1241894	3.1830767

Source: Table by authors